625964540 has 12 divisors (see below), whose sum is σ = 1314525576. Its totient is φ = 250385808.

The previous prime is 625964539. The next prime is 625964543. The reversal of 625964540 is 45469526.

It is a happy number.

625964540 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625964543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15649094 + ... + 15649133.

It is an arithmetic number, because the mean of its divisors is an integer number (109543798).

Almost surely, 2^625964540 is an apocalyptic number.

It is an amenable number.

625964540 is an abundant number, since it is smaller than the sum of its proper divisors (688561036).

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

625964540 is a wasteful number, since it uses less digits than its factorization.

625964540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31298236 (or 31298234 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 41.

The square root of 625964540 is about 25019.2833630382. The cubic root of 625964540 is about 855.4275713305.

The spelling of 625964540 in words is "six hundred twenty-five million, nine hundred sixty-four thousand, five hundred forty".