56423737 has 2 divisors, whose sum is σ = 56423738. Its totient is φ = 56423736.

The previous prime is 56423693. The next prime is 56423753. The reversal of 56423737 is 73732465.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52113961 + 4309776 = 7219^2 + 2076^2 .

It is a cyclic number.

It is not a de Polignac number, because 56423737 - 2¹¹ = 56421689 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 56423696 and 56423705.

It is not a weakly prime, because it can be changed into another prime (56423137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28211868 + 28211869.

It is an arithmetic number, because the mean of its divisors is an integer number (28211869).

Almost surely, 2^56423737 is an apocalyptic number.

It is an amenable number.

56423737 is a deficient number, since it is larger than the sum of its proper divisors (1).

56423737 is an equidigital number, since it uses as much as digits as its factorization.

56423737 is an evil number, because the sum of its binary digits is even.

The product of its digits is 105840, while the sum is 37.

The square root of 56423737 is about 7511.5735368829. The cubic root of 56423737 is about 383.5487886879.

The spelling of 56423737 in words is "fifty-six million, four hundred twenty-three thousand, seven hundred thirty-seven".