56420025 has 72 divisors (see below), whose sum is σ = 105067680. Its totient is φ = 26634240.

The previous prime is 56420009. The next prime is 56420029. The reversal of 56420025 is 52002465.

It is not a de Polignac number, because 56420025 - 2⁴ = 56420009 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 56419977 and 56420004.

It is not an unprimeable number, because it can be changed into a prime (56420029) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 411757 + ... + 411893.

Almost surely, 2^56420025 is an apocalyptic number.

It is an amenable number.

56420025 is a deficient number, since it is larger than the sum of its proper divisors (48647655).

56420025 is a wasteful number, since it uses less digits than its factorization.

56420025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203 (or 181 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 56420025 is about 7511.3264474392. The cubic root of 56420025 is about 383.5403775451.

The spelling of 56420025 in words is "fifty-six million, four hundred twenty thousand, twenty-five".