27185630725 has 48 divisors (see below), whose sum is σ = 37980783360. Its totient is φ = 19132467200.

The previous prime is 27185630707. The next prime is 27185630803. The reversal of 27185630725 is 52703658172.

It is a de Polignac number, because none of the positive numbers 2^k-27185630725 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1138509 + ... + 1162141.

It is an arithmetic number, because the mean of its divisors is an integer number (791266320).

Almost surely, 2^27185630725 is an apocalyptic number.

27185630725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27185630725 is a deficient number, since it is larger than the sum of its proper divisors (10795152635).

27185630725 is a wasteful number, since it uses less digits than its factorization.

27185630725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23790 (or 23785 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 46.

The spelling of 27185630725 in words is "twenty-seven billion, one hundred eighty-five million, six hundred thirty thousand, seven hundred twenty-five".