56442451 has 12 divisors (see below), whose sum is σ = 61363560. Its totient is φ = 51891840.

The previous prime is 56442401. The next prime is 56442469. The reversal of 56442451 is 15424465.

It is a happy number.

It is not a de Polignac number, because 56442451 - 2²³ = 48053843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56442401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55435 + ... + 56443.

It is an arithmetic number, because the mean of its divisors is an integer number (5113630).

Almost surely, 2^56442451 is an apocalyptic number.

56442451 is a deficient number, since it is larger than the sum of its proper divisors (4921109).

56442451 is a wasteful number, since it uses less digits than its factorization.

56442451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366 (or 1353 counting only the distinct ones).

The product of its digits is 19200, while the sum is 31.

The square root of 56442451 is about 7512.8191113589. The cubic root of 56442451 is about 383.5911877385.

The spelling of 56442451 in words is "fifty-six million, four hundred forty-two thousand, four hundred fifty-one".