56757451 has 2 divisors, whose sum is σ = 56757452. Its totient is φ = 56757450.

The previous prime is 56757439. The next prime is 56757461. The reversal of 56757451 is 15475765.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56757451 - 2¹⁵ = 56724683 is a prime.

It is not a weakly prime, because it can be changed into another prime (56757431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28378725 + 28378726.

It is an arithmetic number, because the mean of its divisors is an integer number (28378726).

Almost surely, 2^56757451 is an apocalyptic number.

56757451 is a deficient number, since it is larger than the sum of its proper divisors (1).

56757451 is an equidigital number, since it uses as much as digits as its factorization.

56757451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 147000, while the sum is 40.

The square root of 56757451 is about 7533.7541106675. The cubic root of 56757451 is about 384.3034597595.

The spelling of 56757451 in words is "fifty-six million, seven hundred fifty-seven thousand, four hundred fifty-one".