56166925 has 24 divisors (see below), whose sum is σ = 73323432. Its totient is φ = 42624000.

The previous prime is 56166919. The next prime is 56166949. The reversal of 56166925 is 52966165.

It can be written as a sum of positive squares in 12 ways, for example, as 19236996 + 36929929 = 4386^2 + 6077^2 .

It is not a de Polignac number, because 56166925 - 2¹⁷ = 56035853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37185 + ... + 38665.

It is an arithmetic number, because the mean of its divisors is an integer number (3055143).

Almost surely, 2^56166925 is an apocalyptic number.

It is an amenable number.

56166925 is a deficient number, since it is larger than the sum of its proper divisors (17156507).

56166925 is a wasteful number, since it uses less digits than its factorization.

56166925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1569 (or 1564 counting only the distinct ones).

The product of its digits is 97200, while the sum is 40.

The square root of 56166925 is about 7494.4596202795. The cubic root of 56166925 is about 382.9659976131.

The spelling of 56166925 in words is "fifty-six million, one hundred sixty-six thousand, nine hundred twenty-five".