56501941 has 2 divisors, whose sum is σ = 56501942. Its totient is φ = 56501940.

The previous prime is 56501911. The next prime is 56501959. The reversal of 56501941 is 14910565.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45279441 + 11222500 = 6729^2 + 3350^2 .

It is a cyclic number.

It is not a de Polignac number, because 56501941 - 2⁵ = 56501909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56501911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28250970 + 28250971.

It is an arithmetic number, because the mean of its divisors is an integer number (28250971).

Almost surely, 2^56501941 is an apocalyptic number.

It is an amenable number.

56501941 is a deficient number, since it is larger than the sum of its proper divisors (1).

56501941 is an equidigital number, since it uses as much as digits as its factorization.

56501941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 56501941 is about 7516.7773014770. Note that the first 3 decimals coincide. The cubic root of 56501941 is about 383.7259080109.

The spelling of 56501941 in words is "fifty-six million, five hundred one thousand, nine hundred forty-one".