252549053658 has 64 divisors (see below), whose sum is σ = 626478336000. Its totient is φ = 74750240880.

The previous prime is 252549053629. The next prime is 252549053671. The reversal of 252549053658 is 856350945252.

252549053658 is a `hidden beast` number, since 2 + 5 + 2 + 54 + 9 + 0 + 536 + 58 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4918258 + ... + 4969341.

It is an arithmetic number, because the mean of its divisors is an integer number (9788724000).

Almost surely, 2^252549053658 is an apocalyptic number.

252549053658 is an abundant number, since it is smaller than the sum of its proper divisors (373929282342).

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

252549053658 is a wasteful number, since it uses less digits than its factorization.

252549053658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9887664 (or 9887658 counting only the distinct ones).

The product of its (nonzero) digits is 12960000, while the sum is 54.

The spelling of 252549053658 in words is "two hundred fifty-two billion, five hundred forty-nine million, fifty-three thousand, six hundred fifty-eight".