56523037 has 2 divisors, whose sum is σ = 56523038. Its totient is φ = 56523036.

The previous prime is 56523017. The next prime is 56523041. The reversal of 56523037 is 73032565.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53304601 + 3218436 = 7301^2 + 1794^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56523037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56523007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28261518 + 28261519.

It is an arithmetic number, because the mean of its divisors is an integer number (28261519).

Almost surely, 2^56523037 is an apocalyptic number.

It is an amenable number.

56523037 is a deficient number, since it is larger than the sum of its proper divisors (1).

56523037 is an equidigital number, since it uses as much as digits as its factorization.

56523037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18900, while the sum is 31.

The square root of 56523037 is about 7518.1804314608. The cubic root of 56523037 is about 383.7736590223.

The spelling of 56523037 in words is "fifty-six million, five hundred twenty-three thousand, thirty-seven".