56649233 has 2 divisors, whose sum is σ = 56649234. Its totient is φ = 56649232.

The previous prime is 56649223. The next prime is 56649251. The reversal of 56649233 is 33294665.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42601729 + 14047504 = 6527^2 + 3748^2 .

It is a cyclic number.

It is not a de Polignac number, because 56649233 - 2²² = 52454929 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (56649223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28324616 + 28324617.

It is an arithmetic number, because the mean of its divisors is an integer number (28324617).

Almost surely, 2^56649233 is an apocalyptic number.

It is an amenable number.

56649233 is a deficient number, since it is larger than the sum of its proper divisors (1).

56649233 is an equidigital number, since it uses as much as digits as its factorization.

56649233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 38.

The square root of 56649233 is about 7526.5684744112. The cubic root of 56649233 is about 384.0590571242.

The spelling of 56649233 in words is "fifty-six million, six hundred forty-nine thousand, two hundred thirty-three".