56912225 has 12 divisors (see below), whose sum is σ = 70886460. Its totient is φ = 45326400.

The previous prime is 56912213. The next prime is 56912227. The reversal of 56912225 is 52221965.

It can be written as a sum of positive squares in 6 ways, for example, as 3972049 + 52940176 = 1993^2 + 7276^2 .

It is not a de Polignac number, because 56912225 - 2⁶ = 56912161 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56912191 and 56912200.

It is not an unprimeable number, because it can be changed into a prime (56912227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 755 + ... + 10695.

It is an arithmetic number, because the mean of its divisors is an integer number (5907205).

Almost surely, 2^56912225 is an apocalyptic number.

It is an amenable number.

56912225 is a deficient number, since it is larger than the sum of its proper divisors (13974235).

56912225 is a wasteful number, since it uses less digits than its factorization.

56912225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10180 (or 10175 counting only the distinct ones).

The product of its digits is 10800, while the sum is 32.

The square root of 56912225 is about 7544.0191542705. The cubic root of 56912225 is about 384.6524665016.

The spelling of 56912225 in words is "fifty-six million, nine hundred twelve thousand, two hundred twenty-five".