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50005505005554 = 23712720129465739
BaseRepresentation
bin10110101111010110100000…
…10111001101011111110010
320120001110221121210112002110
423113223100113031133302
523023242233240134204
6254204113432430150
713350531013251030
oct1327532027153762
9216043847715073
1050005505005554
1114a2a240a3125a
12573749a548356
1321b966409a107
14c4c3ca7a5550
155bab580bc889
hex2d7ad05cd7f2

50005505005554 has 64 divisors (see below), whose sum is σ = 115204254105600. Its totient is φ = 14174054189568.

The previous prime is 50005505005553. The next prime is 50005505005559. The reversal of 50005505005554 is 45550050550005.

It is a super-2 number, since 2×500055050055542 (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (50005505005553) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 107135217 + ... + 107600955.

It is an arithmetic number, because the mean of its divisors is an integer number (1800066470400).

Almost surely, 250005505005554 is an apocalyptic number.

50005505005554 is an abundant number, since it is smaller than the sum of its proper divisors (65198749100046).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50005505005554 is a wasteful number, since it uses less digits than its factorization.

50005505005554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486007.

The product of its (nonzero) digits is 312500, while the sum is 39.

Adding to 50005505005554 its reverse (45550050550005), we get a palindrome (95555555555559).

The spelling of 50005505005554 in words is "fifty trillion, five billion, five hundred five million, five thousand, five hundred fifty-four".

Divisors: 1 2 3 6 7 14 21 42 127 254 381 762 889 1778 2667 5334 20129 40258 60387 120774 140903 281806 422709 465739 845418 931478 1397217 2556383 2794434 3260173 5112766 6520346 7669149 9780519 15338298 17894681 19561038 35789362 53684043 59148853 107368086 118297706 177446559 354893118 414041971 828083942 1242125913 2484251826 9374860331 18749720662 28124580993 56249161986 65624022317 131248044634 196872066951 393744133902 1190607262037 2381214524074 3571821786111 7143643572222 8334250834259 16668501668518 25002752502777 50005505005554