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505000255253 = 1361493631717
BaseRepresentation
bin1110101100101000101…
…11000101111100010101
31210021111100001222221112
413112110113011330111
531233220031132003
61023554404024405
751325243226114
oct7262427057425
91707440058845
10505000255253
1118519552a25a
1281a57692105
13388100688b0
141a62934dc7b
15d209ada3d8
hex75945c5f15

505000255253 has 8 divisors (see below), whose sum is σ = 543856133688. Its totient is φ = 466145763264.

The previous prime is 505000255061. The next prime is 505000255271. The reversal of 505000255253 is 352552000505.

It can be written as a sum of positive squares in 4 ways, for example, as 52499182129 + 452501073124 = 229127^2 + 672682^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 505000255253 - 210 = 505000254229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505000255283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 483551 + ... + 1115267.

It is an arithmetic number, because the mean of its divisors is an integer number (67982016711).

Almost surely, 2505000255253 is an apocalyptic number.

It is an amenable number.

505000255253 is a deficient number, since it is larger than the sum of its proper divisors (38855878435).

505000255253 is a wasteful number, since it uses less digits than its factorization.

505000255253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693223.

The product of its (nonzero) digits is 37500, while the sum is 32.

Adding to 505000255253 its reverse (352552000505), we get a palindrome (857552255758).

The spelling of 505000255253 in words is "five hundred five billion, two hundred fifty-five thousand, two hundred fifty-three".

Divisors: 1 13 61493 631717 799409 8212321 38846173481 505000255253