255121264530 has 48 divisors (see below), whose sum is σ = 723616680384. Its totient is φ = 61847579040.

The previous prime is 255121264501. The next prime is 255121264589. The reversal of 255121264530 is 35462121552.

255121264530 is a `hidden beast` number, since 2 + 5 + 5 + 1 + 2 + 1 + 2 + 645 + 3 + 0 = 666.

It is a super-2 number, since 2×255121264530² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 128848134 + ... + 128850113.

It is an arithmetic number, because the mean of its divisors is an integer number (15075347508).

Almost surely, 2^255121264530 is an apocalyptic number.

255121264530 is an abundant number, since it is smaller than the sum of its proper divisors (468495415854).

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

255121264530 is a wasteful number, since it uses less digits than its factorization.

255121264530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257698271 (or 257698268 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 255121264530 in words is "two hundred fifty-five billion, one hundred twenty-one million, two hundred sixty-four thousand, five hundred thirty".