56473913 has 2 divisors, whose sum is σ = 56473914. Its totient is φ = 56473912.

The previous prime is 56473799. The next prime is 56473987. The reversal of 56473913 is 31937465.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41628304 + 14845609 = 6452^2 + 3853^2 .

It is a cyclic number.

It is not a de Polignac number, because 56473913 - 2⁸ = 56473657 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (56473013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28236956 + 28236957.

It is an arithmetic number, because the mean of its divisors is an integer number (28236957).

Almost surely, 2^56473913 is an apocalyptic number.

It is an amenable number.

56473913 is a deficient number, since it is larger than the sum of its proper divisors (1).

56473913 is an equidigital number, since it uses as much as digits as its factorization.

56473913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68040, while the sum is 38.

The square root of 56473913 is about 7514.9127074105. The cubic root of 56473913 is about 383.6624479573.

The spelling of 56473913 in words is "fifty-six million, four hundred seventy-three thousand, nine hundred thirteen".