56520451 has 8 divisors (see below), whose sum is σ = 60941664. Its totient is φ = 52109760.

The previous prime is 56520437. The next prime is 56520467. The reversal of 56520451 is 15402565.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56520451 - 2¹⁷ = 56389379 is a prime.

It is a super-2 number, since 2×56520451² = 6389122762486802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56520491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11295 + ... + 15511.

It is an arithmetic number, because the mean of its divisors is an integer number (7617708).

Almost surely, 2^56520451 is an apocalyptic number.

56520451 is a deficient number, since it is larger than the sum of its proper divisors (4421213).

56520451 is a wasteful number, since it uses less digits than its factorization.

56520451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5261.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 56520451 is about 7518.0084463906. The cubic root of 56520451 is about 383.7678062239.

The spelling of 56520451 in words is "fifty-six million, five hundred twenty thousand, four hundred fifty-one".