56409207 has 16 divisors (see below), whose sum is σ = 76906368. Its totient is φ = 36768800.

The previous prime is 56409203. The next prime is 56409253. The reversal of 56409207 is 70290465.

It is a cyclic number.

It is not a de Polignac number, because 56409207 - 2² = 56409203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56409203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24028 + ... + 26270.

It is an arithmetic number, because the mean of its divisors is an integer number (4806648).

Almost surely, 2^56409207 is an apocalyptic number.

56409207 is a deficient number, since it is larger than the sum of its proper divisors (20497161).

56409207 is a wasteful number, since it uses less digits than its factorization.

56409207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2430.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 56409207 is about 7510.6063004261. The cubic root of 56409207 is about 383.5158625789.

It can be divided in two parts, 56409 and 207, that added together give a triangular number (56616 = T₃₃₆).

The spelling of 56409207 in words is "fifty-six million, four hundred nine thousand, two hundred seven".