56221025 has 24 divisors (see below), whose sum is σ = 80006784. Its totient is φ = 38390400.

The previous prime is 56220991. The next prime is 56221027. The reversal of 56221025 is 52012265.

It is not a de Polignac number, because 56221025 - 2⁶ = 56220961 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56221027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53909 + ... + 54941.

It is an arithmetic number, because the mean of its divisors is an integer number (3333616).

Almost surely, 2^56221025 is an apocalyptic number.

It is an amenable number.

56221025 is a deficient number, since it is larger than the sum of its proper divisors (23785759).

56221025 is a wasteful number, since it uses less digits than its factorization.

56221025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361 (or 1356 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 56221025 is about 7498.0680845135. The cubic root of 56221025 is about 383.0889158135.

The spelling of 56221025 in words is "fifty-six million, two hundred twenty-one thousand, twenty-five".