56653901 has 2 divisors, whose sum is σ = 56653902. Its totient is φ = 56653900.

The previous prime is 56653897. The next prime is 56653903. The reversal of 56653901 is 10935665.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56640676 + 13225 = 7526^2 + 115^2 .

It is a cyclic number.

It is not a de Polignac number, because 56653901 - 2² = 56653897 is a prime.

Together with 56653903, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56653903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28326950 + 28326951.

It is an arithmetic number, because the mean of its divisors is an integer number (28326951).

Almost surely, 2^56653901 is an apocalyptic number.

It is an amenable number.

56653901 is a deficient number, since it is larger than the sum of its proper divisors (1).

56653901 is an equidigital number, since it uses as much as digits as its factorization.

56653901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24300, while the sum is 35.

The square root of 56653901 is about 7526.8785695001. The cubic root of 56653901 is about 384.0696058898.

The spelling of 56653901 in words is "fifty-six million, six hundred fifty-three thousand, nine hundred one".