56918197692225 has 27 divisors (see below), whose sum is σ = 101947019004649. Its totient is φ = 30356311747200.

The previous prime is 56918197692217. The next prime is 56918197692253. The reversal of 56918197692225 is 52229679181965.

The square root of 56918197692225 is 7544415.

It is a perfect power (a square), and thus also a powerful number.

56918197692225 is a `hidden beast` number, since 56 + 9 + 181 + 97 + 6 + 92 + 225 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 26422488758961 + 30495708933264 = 5140281^2 + 5522292^2 .

It is not a de Polignac number, because 56918197692225 - 2³ = 56918197692217 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 112914745 + ... + 113417705.

Almost surely, 2^{56918197692225} is an apocalyptic number.

56918197692225 is the 7544415-th square number.

56918197692225 is the 3772208-th centered octagonal number.

It is an amenable number.

56918197692225 is a deficient number, since it is larger than the sum of its proper divisors (45028821312424).

56918197692225 is an frugal number, since it uses more digits than its factorization.

56918197692225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005938 (or 502969 counting only the distinct ones).

The product of its digits is 293932800, while the sum is 72.

The spelling of 56918197692225 in words is "fifty-six trillion, nine hundred eighteen billion, one hundred ninety-seven million, six hundred ninety-two thousand, two hundred twenty-five".