255520568800137 has 16 divisors (see below), whose sum is σ = 341529690026880. Its totient is φ = 169929253076352.

The previous prime is 255520568800129. The next prime is 255520568800163. The reversal of 255520568800137 is 731008865025552.

It is a happy number.

It is not a de Polignac number, because 255520568800137 - 2³ = 255520568800129 is a prime.

It is a super-2 number, since 2×255520568800137² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (255520568800537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176170663 + ... + 177615155.

It is an arithmetic number, because the mean of its divisors is an integer number (21345605626680).

Almost surely, 2^{255520568800137} is an apocalyptic number.

It is an amenable number.

255520568800137 is a deficient number, since it is larger than the sum of its proper divisors (86009121226743).

255520568800137 is a wasteful number, since it uses less digits than its factorization.

255520568800137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1589072.

The product of its (nonzero) digits is 20160000, while the sum is 57.

The spelling of 255520568800137 in words is "two hundred fifty-five trillion, five hundred twenty billion, five hundred sixty-eight million, eight hundred thousand, one hundred thirty-seven".