625222528 has 64 divisors (see below), whose sum is σ = 1447747200. Its totient is φ = 263388672.

The previous prime is 625222487. The next prime is 625222573. The reversal of 625222528 is 825222526.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 625222493 and 625222502.

It is a congruent number.

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, 46951 + ... + 58777.

It is an arithmetic number, because the mean of its divisors is an integer number (22621050).

Almost surely, 2^625222528 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 625222528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (723873600).

625222528 is an abundant number, since it is smaller than the sum of its proper divisors (822524672).

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

625222528 is a wasteful number, since it uses less digits than its factorization.

625222528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11907 (or 11895 counting only the distinct ones).

The product of its digits is 38400, while the sum is 34.

The square root of 625222528 is about 25004.4501639208. The cubic root of 625222528 is about 855.0894326386.

The spelling of 625222528 in words is "six hundred twenty-five million, two hundred twenty-two thousand, five hundred twenty-eight".