252561565476 has 72 divisors (see below), whose sum is σ = 696562330464. Its totient is φ = 76522304640.

The previous prime is 252561565429. The next prime is 252561565483. The reversal of 252561565476 is 674565165252.

252561565476 is a `hidden beast` number, since 2 + 5 + 2 + 5 + 6 + 1 + 565 + 4 + 76 = 666.

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, 2804095 + ... + 2892761.

It is an arithmetic number, because the mean of its divisors is an integer number (9674476812).

Almost surely, 2^252561565476 is an apocalyptic number.

It is an amenable number.

252561565476 is an abundant number, since it is smaller than the sum of its proper divisors (444000764988).

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

252561565476 is a wasteful number, since it uses less digits than its factorization.

252561565476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95881 (or 95876 counting only the distinct ones).

The product of its digits is 15120000, while the sum is 54.

The spelling of 252561565476 in words is "two hundred fifty-two billion, five hundred sixty-one million, five hundred sixty-five thousand, four hundred seventy-six".