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56516501253 = 3631149319997
BaseRepresentation
bin110100101000101001…
…010101111100000101
312101212201202201211010
4310220221111330011
51411221211020003
641544024432433
74040350222452
oct645051257405
9171781681733
1056516501253
1121a72100983
12ab53318719
135438b4a624
142a41d8c829
15170ba05003
hexd28a55f05

56516501253 has 16 divisors (see below), whose sum is σ = 75529086336. Its totient is φ = 37590880320.

The previous prime is 56516501161. The next prime is 56516501257. The reversal of 56516501253 is 35210561565.

It is not a de Polignac number, because 56516501253 - 229 = 55979630341 is a prime.

It is a super-2 number, since 2×565165012532 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56516501257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2816251 + ... + 2836247.

It is an arithmetic number, because the mean of its divisors is an integer number (4720567896).

Almost surely, 256516501253 is an apocalyptic number.

It is an amenable number.

56516501253 is a deficient number, since it is larger than the sum of its proper divisors (19012585083).

56516501253 is a wasteful number, since it uses less digits than its factorization.

56516501253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22124.

The product of its (nonzero) digits is 135000, while the sum is 39.

The spelling of 56516501253 in words is "fifty-six billion, five hundred sixteen million, five hundred one thousand, two hundred fifty-three".

Divisors: 1 3 631 1493 1893 4479 19997 59991 942083 2826249 12618107 29855521 37854321 89566563 18838833751 56516501253