56662537 has 2 divisors, whose sum is σ = 56662538. Its totient is φ = 56662536.

The previous prime is 56662499. The next prime is 56662553. The reversal of 56662537 is 73526665.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37748736 + 18913801 = 6144^2 + 4349^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56662537 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56662537.

It is not a weakly prime, because it can be changed into another prime (56669537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28331268 + 28331269.

It is an arithmetic number, because the mean of its divisors is an integer number (28331269).

Almost surely, 2^56662537 is an apocalyptic number.

It is an amenable number.

56662537 is a deficient number, since it is larger than the sum of its proper divisors (1).

56662537 is an equidigital number, since it uses as much as digits as its factorization.

56662537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 226800, while the sum is 40.

The square root of 56662537 is about 7527.4522250228. The cubic root of 56662537 is about 384.0891200305.

The spelling of 56662537 in words is "fifty-six million, six hundred sixty-two thousand, five hundred thirty-seven".