255025025505 has 40 divisors (see below), whose sum is σ = 458537348544. Its totient is φ = 135602359200.

The previous prime is 255025025491. The next prime is 255025025543. The reversal of 255025025505 is 505520520552.

255025025505 is a `hidden beast` number, since 2 + 5 + 50 + 2 + 50 + 2 + 550 + 5 = 666.

It is not a de Polignac number, because 255025025505 - 2⁵ = 255025025473 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 255025025505.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 817141 + ... + 1085250.

Almost surely, 2^255025025505 is an apocalyptic number.

It is an amenable number.

255025025505 is a deficient number, since it is larger than the sum of its proper divisors (203512323039).

255025025505 is a wasteful number, since it uses less digits than its factorization.

255025025505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1902739 (or 1902730 counting only the distinct ones).

The product of its (nonzero) digits is 125000, while the sum is 36.

The spelling of 255025025505 in words is "two hundred fifty-five billion, twenty-five million, twenty-five thousand, five hundred five".