56637173 has 2 divisors, whose sum is σ = 56637174. Its totient is φ = 56637172.

The previous prime is 56637167. The next prime is 56637179. The reversal of 56637173 is 37173665.

It is a balanced prime because it is at equal distance from previous prime (56637167) and next prime (56637179).

It can be written as a sum of positive squares in only one way, i.e., 55249489 + 1387684 = 7433^2 + 1178^2 .

It is a cyclic number.

It is not a de Polignac number, because 56637173 - 2¹⁰ = 56636149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56637179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28318586 + 28318587.

It is an arithmetic number, because the mean of its divisors is an integer number (28318587).

Almost surely, 2^56637173 is an apocalyptic number.

It is an amenable number.

56637173 is a deficient number, since it is larger than the sum of its proper divisors (1).

56637173 is an equidigital number, since it uses as much as digits as its factorization.

56637173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 79380, while the sum is 38.

The square root of 56637173 is about 7525.7672698536. The cubic root of 56637173 is about 384.0318012038.

The spelling of 56637173 in words is "fifty-six million, six hundred thirty-seven thousand, one hundred seventy-three".