625331616 has 192 divisors, whose sum is σ = 2064642048. Its totient is φ = 161307648.

The previous prime is 625331573. The next prime is 625331633. The reversal of 625331616 is 616133526.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 409831 + ... + 411353.

It is an arithmetic number, because the mean of its divisors is an integer number (10753344).

Almost surely, 2^625331616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 625331616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1032321024).

625331616 is an abundant number, since it is smaller than the sum of its proper divisors (1439310432).

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

625331616 is a wasteful number, since it uses less digits than its factorization.

625331616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1603 (or 1595 counting only the distinct ones).

The product of its digits is 19440, while the sum is 33.

The square root of 625331616 is about 25006.6314404799. The cubic root of 625331616 is about 855.1391613710.

The spelling of 625331616 in words is "six hundred twenty-five million, three hundred thirty-one thousand, six hundred sixteen".