625261944 has 16 divisors (see below), whose sum is σ = 1563154920. Its totient is φ = 208420640.

The previous prime is 625261943. The next prime is 625261951. The reversal of 625261944 is 449162526.

It is a happy number.

625261944 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×625261944³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625261943) 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, 13026267 + ... + 13026314.

Almost surely, 2^625261944 is an apocalyptic number.

It is an amenable number.

625261944 is an abundant number, since it is smaller than the sum of its proper divisors (937892976).

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

625261944 is a wasteful number, since it uses less digits than its factorization.

625261944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26052590 (or 26052586 counting only the distinct ones).

The product of its digits is 103680, while the sum is 39.

The square root of 625261944 is about 25005.2383311977. The cubic root of 625261944 is about 855.1074014392.

The spelling of 625261944 in words is "six hundred twenty-five million, two hundred sixty-one thousand, nine hundred forty-four".