625321632 has 72 divisors (see below), whose sum is σ = 1777495104. Its totient is φ = 192401664.

The previous prime is 625321607. The next prime is 625321633. The reversal of 625321632 is 236123526.

It is a self number, because there is not a number n which added to its sum of digits gives 625321632.

It is not an unprimeable number, because it can be changed into a prime (625321633) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3048 + ... + 35495.

It is an arithmetic number, because the mean of its divisors is an integer number (24687432).

Almost surely, 2^625321632 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 625321632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (888747552).

625321632 is an abundant number, since it is smaller than the sum of its proper divisors (1152173472).

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

625321632 is a wasteful number, since it uses less digits than its factorization.

625321632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38582 (or 38561 counting only the distinct ones).

The product of its digits is 12960, while the sum is 30.

The square root of 625321632 is about 25006.4318126357. The cubic root of 625321632 is about 855.1346103165.

The spelling of 625321632 in words is "six hundred twenty-five million, three hundred twenty-one thousand, six hundred thirty-two".