625859966052 has 36 divisors (see below), whose sum is σ = 1582476779520. Its totient is φ = 208561720752.

The previous prime is 625859965993. The next prime is 625859966063. The reversal of 625859966052 is 250669958526.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×625859966052² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2297052 + ... + 2555027.

It is an arithmetic number, because the mean of its divisors is an integer number (43957688320).

Almost surely, 2^625859966052 is an apocalyptic number.

It is an amenable number.

625859966052 is an abundant number, since it is smaller than the sum of its proper divisors (956616813468).

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

625859966052 is a wasteful number, since it uses less digits than its factorization.

625859966052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4855672 (or 4855667 counting only the distinct ones).

The product of its (nonzero) digits is 69984000, while the sum is 63.

The spelling of 625859966052 in words is "six hundred twenty-five billion, eight hundred fifty-nine million, nine hundred sixty-six thousand, fifty-two".