56311451 has 4 divisors (see below), whose sum is σ = 64355952. Its totient is φ = 48266952.

The previous prime is 56311427. The next prime is 56311477. The reversal of 56311451 is 15411365.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56311451 - 2¹⁴ = 56295067 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56311451.

It is not an unprimeable number, because it can be changed into a prime (56310451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4022240 + ... + 4022253.

It is an arithmetic number, because the mean of its divisors is an integer number (16088988).

Almost surely, 2^56311451 is an apocalyptic number.

56311451 is a deficient number, since it is larger than the sum of its proper divisors (8044501).

56311451 is an equidigital number, since it uses as much as digits as its factorization.

56311451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8044500.

The product of its digits is 1800, while the sum is 26.

The square root of 56311451 is about 7504.0956150625. The cubic root of 56311451 is about 383.2941927690.

The spelling of 56311451 in words is "fifty-six million, three hundred eleven thousand, four hundred fifty-one".