625431021036 has 24 divisors (see below), whose sum is σ = 1459398300864. Its totient is φ = 208468542480.

The previous prime is 625431021029. The next prime is 625431021041. The reversal of 625431021036 is 630120134526.

It is a junction number, because it is equal to n+sod(n) for n = 625431020988 and 625431021006.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 746530 + ... + 1344681.

It is an arithmetic number, because the mean of its divisors is an integer number (60808262536).

Almost surely, 2^625431021036 is an apocalyptic number.

It is an amenable number.

625431021036 is an abundant number, since it is smaller than the sum of its proper divisors (833967279828).

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

625431021036 is a wasteful number, since it uses less digits than its factorization.

625431021036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2116141 (or 2116139 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The spelling of 625431021036 in words is "six hundred twenty-five billion, four hundred thirty-one million, twenty-one thousand, thirty-six".