56453109 has 32 divisors (see below), whose sum is σ = 82114560. Its totient is φ = 34402368.

The previous prime is 56453101. The next prime is 56453113. The reversal of 56453109 is 90135465.

It is a happy number.

It is not a de Polignac number, because 56453109 - 2³ = 56453101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56453109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56453101) 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, 157072 + ... + 157430.

It is an arithmetic number, because the mean of its divisors is an integer number (2566080).

Almost surely, 2^56453109 is an apocalyptic number.

It is an amenable number.

56453109 is a deficient number, since it is larger than the sum of its proper divisors (25661451).

56453109 is a wasteful number, since it uses less digits than its factorization.

56453109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481.

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 56453109 is about 7513.5283988283. The cubic root of 56453109 is about 383.6153306634.

The spelling of 56453109 in words is "fifty-six million, four hundred fifty-three thousand, one hundred nine".