56957903 has 2 divisors, whose sum is σ = 56957904. Its totient is φ = 56957902.

The previous prime is 56957899. The next prime is 56957909. The reversal of 56957903 is 30975965.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56957903 - 2² = 56957899 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56957909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28478951 + 28478952.

It is an arithmetic number, because the mean of its divisors is an integer number (28478952).

Almost surely, 2^56957903 is an apocalyptic number.

56957903 is a deficient number, since it is larger than the sum of its proper divisors (1).

56957903 is an equidigital number, since it uses as much as digits as its factorization.

56957903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 255150, while the sum is 44.

The square root of 56957903 is about 7547.0459783945. The cubic root of 56957903 is about 384.7553468982.

The spelling of 56957903 in words is "fifty-six million, nine hundred fifty-seven thousand, nine hundred three".