255516245001 has 24 divisors (see below), whose sum is σ = 390913609320. Its totient is φ = 160273022976.

The previous prime is 255516244993. The next prime is 255516245003. The reversal of 255516245001 is 100542615552.

255516245001 is a `hidden beast` number, since 2 + 5 + 551 + 62 + 45 + 0 + 0 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 47875628025 + 207640616976 = 218805^2 + 455676^2 .

It is not a de Polignac number, because 255516245001 - 2³ = 255516244993 is a prime.

It is a super-2 number, since 2×255516245001² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (255516245003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 221361 + ... + 748353.

It is an arithmetic number, because the mean of its divisors is an integer number (16288067055).

Almost surely, 2^255516245001 is an apocalyptic number.

It is an amenable number.

255516245001 is a deficient number, since it is larger than the sum of its proper divisors (135397364319).

255516245001 is a wasteful number, since it uses less digits than its factorization.

255516245001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530185 (or 530182 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

The spelling of 255516245001 in words is "two hundred fifty-five billion, five hundred sixteen million, two hundred forty-five thousand, one".