255504047520 has 96 divisors (see below), whose sum is σ = 805096514880. Its totient is φ = 68112506880.

The previous prime is 255504047507. The next prime is 255504047593. The reversal of 255504047520 is 25740405552.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1437135 + ... + 1605105.

It is an arithmetic number, because the mean of its divisors is an integer number (8386422030).

Almost surely, 2^255504047520 is an apocalyptic number.

255504047520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255504047520 is an abundant number, since it is smaller than the sum of its proper divisors (549592467360).

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

255504047520 is a wasteful number, since it uses less digits than its factorization.

255504047520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171158 (or 171150 counting only the distinct ones).

The product of its (nonzero) digits is 280000, while the sum is 39.

The spelling of 255504047520 in words is "two hundred fifty-five billion, five hundred four million, forty-seven thousand, five hundred twenty".