56651597225 has 12 divisors (see below), whose sum is σ = 70364884380. Its totient is φ = 45245856000.

The previous prime is 56651597201. The next prime is 56651597227. The reversal of 56651597225 is 52279515665.

It can be written as a sum of positive squares in 6 ways, for example, as 8402838889 + 48248758336 = 91667^2 + 219656^2 .

It is not a de Polignac number, because 56651597225 - 2⁶ = 56651597161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56651597227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1870220 + ... + 1900269.

It is an arithmetic number, because the mean of its divisors is an integer number (5863740365).

Almost surely, 2^56651597225 is an apocalyptic number.

It is an amenable number.

56651597225 is a deficient number, since it is larger than the sum of its proper divisors (13713287155).

56651597225 is a wasteful number, since it uses less digits than its factorization.

56651597225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3771100 (or 3771095 counting only the distinct ones).

The product of its digits is 5670000, while the sum is 53.

The spelling of 56651597225 in words is "fifty-six billion, six hundred fifty-one million, five hundred ninety-seven thousand, two hundred twenty-five".