625951984 has 20 divisors (see below), whose sum is σ = 1386036784. Its totient is φ = 268265088.

The previous prime is 625951981. The next prime is 625951987. The reversal of 625951984 is 489159526.

It is an interprime number because it is at equal distance from previous prime (625951981) and next prime (625951987).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625951981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2794317 + ... + 2794540.

Almost surely, 2^625951984 is an apocalyptic number.

It is an amenable number.

625951984 is an abundant number, since it is smaller than the sum of its proper divisors (760084800).

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

625951984 is a wasteful number, since it uses less digits than its factorization.

625951984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5588872 (or 5588866 counting only the distinct ones).

The product of its digits is 777600, while the sum is 49.

The square root of 625951984 is about 25019.0324353281. The cubic root of 625951984 is about 855.4218517198.

The spelling of 625951984 in words is "six hundred twenty-five million, nine hundred fifty-one thousand, nine hundred eighty-four".