56635949 has 2 divisors, whose sum is σ = 56635950. Its totient is φ = 56635948.

The previous prime is 56635933. The next prime is 56636003. The reversal of 56635949 is 94953665.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56355049 + 280900 = 7507^2 + 530^2 .

It is a cyclic number.

It is not a de Polignac number, because 56635949 - 2⁴ = 56635933 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56635349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28317974 + 28317975.

It is an arithmetic number, because the mean of its divisors is an integer number (28317975).

Almost surely, 2^56635949 is an apocalyptic number.

It is an amenable number.

56635949 is a deficient number, since it is larger than the sum of its proper divisors (1).

56635949 is an equidigital number, since it uses as much as digits as its factorization.

56635949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 874800, while the sum is 47.

The square root of 56635949 is about 7525.6859488023. The cubic root of 56635949 is about 384.0290347150.

The spelling of 56635949 in words is "fifty-six million, six hundred thirty-five thousand, nine hundred forty-nine".