56440451 has 8 divisors (see below), whose sum is σ = 57060864. Its totient is φ = 55823040.

The previous prime is 56440441. The next prime is 56440463. The reversal of 56440451 is 15404465.

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 56440451 - 2⁶ = 56440387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56440411) 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, 65741 + ... + 66593.

It is an arithmetic number, because the mean of its divisors is an integer number (7132608).

Almost surely, 2^56440451 is an apocalyptic number.

56440451 is a deficient number, since it is larger than the sum of its proper divisors (620413).

56440451 is a wasteful number, since it uses less digits than its factorization.

56440451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1501.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 56440451 is about 7512.6860043529. The cubic root of 56440451 is about 383.5866569203.

The spelling of 56440451 in words is "fifty-six million, four hundred forty thousand, four hundred fifty-one".