61574013625 has 16 divisors (see below), whose sum is σ = 76854055824. Its totient is φ = 49253001600.

The previous prime is 61574013607. The next prime is 61574013653. The reversal of 61574013625 is 52631047516.

61574013625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 792535104 + 60781478521 = 28152^2 + 246539^2 .

It is not a de Polignac number, because 61574013625 - 2⁷ = 61574013497 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1140747 + ... + 1193503.

It is an arithmetic number, because the mean of its divisors is an integer number (4803378489).

Almost surely, 2^61574013625 is an apocalyptic number.

It is an amenable number.

61574013625 is a deficient number, since it is larger than the sum of its proper divisors (15280042199).

61574013625 is an equidigital number, since it uses as much as digits as its factorization.

61574013625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62109 (or 62099 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 40.

The spelling of 61574013625 in words is "sixty-one billion, five hundred seventy-four million, thirteen thousand, six hundred twenty-five".