56905025 has 6 divisors (see below), whose sum is σ = 70562262. Its totient is φ = 45524000.

The previous prime is 56904997. The next prime is 56905073. The reversal of 56905025 is 52050965.

It can be written as a sum of positive squares in 3 ways, for example, as 369664 + 56535361 = 608^2 + 7519^2 .

It is not a de Polignac number, because 56905025 - 2⁸ = 56904769 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 56904982 and 56905000.

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 5 ways as a sum of consecutive naturals, for example, 1138076 + ... + 1138125.

It is an arithmetic number, because the mean of its divisors is an integer number (11760377).

Almost surely, 2^56905025 is an apocalyptic number.

It is an amenable number.

56905025 is a deficient number, since it is larger than the sum of its proper divisors (13657237).

56905025 is a wasteful number, since it uses less digits than its factorization.

56905025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2276211 (or 2276206 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 32.

The square root of 56905025 is about 7543.5419399643. The cubic root of 56905025 is about 384.6362449455.

The spelling of 56905025 in words is "fifty-six million, nine hundred five thousand, twenty-five".