252556442136 has 24 divisors (see below), whose sum is σ = 684007030980. Its totient is φ = 84185480688.

The previous prime is 252556442113. The next prime is 252556442189. The reversal of 252556442136 is 631244655252.

252556442136 is a `hidden beast` number, since 2 + 5 + 2 + 556 + 44 + 21 + 36 = 666.

252556442136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 252556442091 and 252556442100.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1753864110 + ... + 1753864253.

Almost surely, 2^252556442136 is an apocalyptic number.

It is an amenable number.

252556442136 is an abundant number, since it is smaller than the sum of its proper divisors (431450588844).

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

252556442136 is a wasteful number, since it uses less digits than its factorization.

252556442136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3507728375 (or 3507728368 counting only the distinct ones).

The product of its digits is 1728000, while the sum is 45.

The spelling of 252556442136 in words is "two hundred fifty-two billion, five hundred fifty-six million, four hundred forty-two thousand, one hundred thirty-six".