56453661 has 24 divisors (see below), whose sum is σ = 92828736. Its totient is φ = 32725440.

The previous prime is 56453629. The next prime is 56453669. The reversal of 56453661 is 16635465.

56453661 is a `hidden beast` number, since 5 + 64 + 536 + 61 = 666.

It is not a de Polignac number, because 56453661 - 2⁵ = 56453629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56453669) 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, 10120 + ... + 14673.

It is an arithmetic number, because the mean of its divisors is an integer number (3867864).

Almost surely, 2^56453661 is an apocalyptic number.

It is an amenable number.

56453661 is a deficient number, since it is larger than the sum of its proper divisors (36375075).

56453661 is a wasteful number, since it uses less digits than its factorization.

56453661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24833 (or 24830 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 56453661 is about 7513.5651324787. The cubic root of 56453661 is about 383.6165809930.

The spelling of 56453661 in words is "fifty-six million, four hundred fifty-three thousand, six hundred sixty-one".