56464729 has 2 divisors, whose sum is σ = 56464730. Its totient is φ = 56464728.

The previous prime is 56464717. The next prime is 56464753. The reversal of 56464729 is 92746465.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49730704 + 6734025 = 7052^2 + 2595^2 .

It is a cyclic number.

It is not a de Polignac number, because 56464729 - 2²⁵ = 22910297 is a prime.

It is not a weakly prime, because it can be changed into another prime (56464229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28232364 + 28232365.

It is an arithmetic number, because the mean of its divisors is an integer number (28232365).

Almost surely, 2^56464729 is an apocalyptic number.

It is an amenable number.

56464729 is a deficient number, since it is larger than the sum of its proper divisors (1).

56464729 is an equidigital number, since it uses as much as digits as its factorization.

56464729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 43.

The square root of 56464729 is about 7514.3016308903. The cubic root of 56464729 is about 383.6416492867.

The spelling of 56464729 in words is "fifty-six million, four hundred sixty-four thousand, seven hundred twenty-nine".