56051903 has 2 divisors, whose sum is σ = 56051904. Its totient is φ = 56051902.

The previous prime is 56051893. The next prime is 56051909. The reversal of 56051903 is 30915065.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56051903 - 2⁸ = 56051647 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 (56051909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28025951 + 28025952.

It is an arithmetic number, because the mean of its divisors is an integer number (28025952).

Almost surely, 2^56051903 is an apocalyptic number.

56051903 is a deficient number, since it is larger than the sum of its proper divisors (1).

56051903 is an equidigital number, since it uses as much as digits as its factorization.

56051903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4050, while the sum is 29.

The square root of 56051903 is about 7486.7818854298. The cubic root of 56051903 is about 382.7043987076.

Adding to 56051903 its reverse (30915065), we get a palindrome (86966968).

The spelling of 56051903 in words is "fifty-six million, fifty-one thousand, nine hundred three".