625740856 has 16 divisors (see below), whose sum is σ = 1263515400. Its totient is φ = 288803424.

The previous prime is 625740833. The next prime is 625740877. The reversal of 625740856 is 658047526.

It is a super-2 number, since 2×625740856² = 783103237735225472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3008266 + ... + 3008473.

Almost surely, 2^625740856 is an apocalyptic number.

It is an amenable number.

625740856 is an abundant number, since it is smaller than the sum of its proper divisors (637774544).

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

625740856 is a wasteful number, since it uses less digits than its factorization.

625740856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6016758 (or 6016754 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 43.

The square root of 625740856 is about 25014.8127316596. The cubic root of 625740856 is about 855.3256655274.

The spelling of 625740856 in words is "six hundred twenty-five million, seven hundred forty thousand, eight hundred fifty-six".