56409801 has 32 divisors (see below), whose sum is σ = 90021888. Its totient is φ = 30741120.

The previous prime is 56409767. The next prime is 56409817. The reversal of 56409801 is 10890465.

It is not a de Polignac number, because 56409801 - 2⁶ = 56409737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56409401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46930 + ... + 48116.

It is an arithmetic number, because the mean of its divisors is an integer number (2813184).

Almost surely, 2^56409801 is an apocalyptic number.

It is an amenable number.

56409801 is a deficient number, since it is larger than the sum of its proper divisors (33612087).

56409801 is a wasteful number, since it uses less digits than its factorization.

56409801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 56409801 is about 7510.6458443998. The cubic root of 56409801 is about 383.5172087399.

The spelling of 56409801 in words is "fifty-six million, four hundred nine thousand, eight hundred one".