625902064 has 80 divisors (see below), whose sum is σ = 1293104736. Its totient is φ = 293068800.

The previous prime is 625902061. The next prime is 625902077. The reversal of 625902064 is 460209526.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625902061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2596984 + ... + 2597224.

Almost surely, 2^625902064 is an apocalyptic number.

It is an amenable number.

625902064 is an abundant number, since it is smaller than the sum of its proper divisors (667202672).

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

625902064 is a wasteful number, since it uses less digits than its factorization.

625902064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434 (or 428 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 625902064 is about 25018.0347749379. The cubic root of 625902064 is about 855.3991110010.

The spelling of 625902064 in words is "six hundred twenty-five million, nine hundred two thousand, sixty-four".