56433691 has 2 divisors, whose sum is σ = 56433692. Its totient is φ = 56433690.

The previous prime is 56433679. The next prime is 56433701. The reversal of 56433691 is 19633465.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56433691 - 2⁷ = 56433563 is a prime.

It is a super-2 number, since 2×56433691² = 6369522959766962, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 56433691.

It is not a weakly prime, because it can be changed into another prime (56433791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28216845 + 28216846.

It is an arithmetic number, because the mean of its divisors is an integer number (28216846).

Almost surely, 2^56433691 is an apocalyptic number.

56433691 is a deficient number, since it is larger than the sum of its proper divisors (1).

56433691 is an equidigital number, since it uses as much as digits as its factorization.

56433691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 37.

The square root of 56433691 is about 7512.2360852146. The cubic root of 56433691 is about 383.5713419628.

The spelling of 56433691 in words is "fifty-six million, four hundred thirty-three thousand, six hundred ninety-one".