56637701 has 2 divisors, whose sum is σ = 56637702. Its totient is φ = 56637700.

The previous prime is 56637673. The next prime is 56637709. The reversal of 56637701 is 10773665.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29441476 + 27196225 = 5426^2 + 5215^2 .

It is a cyclic number.

It is not a de Polignac number, because 56637701 - 2¹⁴ = 56621317 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56637709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28318850 + 28318851.

It is an arithmetic number, because the mean of its divisors is an integer number (28318851).

Almost surely, 2^56637701 is an apocalyptic number.

It is an amenable number.

56637701 is a deficient number, since it is larger than the sum of its proper divisors (1).

56637701 is an equidigital number, since it uses as much as digits as its factorization.

56637701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26460, while the sum is 35.

The square root of 56637701 is about 7525.8023492515. The cubic root of 56637701 is about 384.0329945788.

The spelling of 56637701 in words is "fifty-six million, six hundred thirty-seven thousand, seven hundred one".