56445625 has 10 divisors (see below), whose sum is σ = 70535234. Its totient is φ = 45156000.

The previous prime is 56445619. The next prime is 56445659. The reversal of 56445625 is 52654465.

It can be written as a sum of positive squares in 5 ways, for example, as 43283241 + 13162384 = 6579^2 + 3628^2 .

It is not a de Polignac number, because 56445625 - 2⁹ = 56445113 is a prime.

It is a super-2 number, since 2×56445625² = 6372217163281250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 44532 + ... + 45781.

Almost surely, 2^56445625 is an apocalyptic number.

It is an amenable number.

56445625 is a deficient number, since it is larger than the sum of its proper divisors (14089609).

56445625 is an frugal number, since it uses more digits than its factorization.

56445625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90333 (or 90318 counting only the distinct ones).

The product of its digits is 144000, while the sum is 37.

The square root of 56445625 is about 7513.0303473366. The cubic root of 56445625 is about 383.5983779271.

The spelling of 56445625 in words is "fifty-six million, four hundred forty-five thousand, six hundred twenty-five".