1625111968 has 12 divisors (see below), whose sum is σ = 3199439250. Its totient is φ = 812555968.

The previous prime is 1625111959. The next prime is 1625111987. The reversal of 1625111968 is 8691115261.

It can be written as a sum of positive squares in only one way, i.e., 1185287184 + 439824784 = 34428^2 + 20972^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1625111968.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25392343 + ... + 25392406.

Almost surely, 2^1625111968 is an apocalyptic number.

It is an amenable number.

1625111968 is a deficient number, since it is larger than the sum of its proper divisors (1574327282).

1625111968 is an equidigital number, since it uses as much as digits as its factorization.

1625111968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50784759 (or 50784751 counting only the distinct ones).

The product of its digits is 25920, while the sum is 40.

The square root of 1625111968 is about 40312.6775096867. The cubic root of 1625111968 is about 1175.6943457266.

The spelling of 1625111968 in words is "one billion, six hundred twenty-five million, one hundred eleven thousand, nine hundred sixty-eight".