56416237 has 2 divisors, whose sum is σ = 56416238. Its totient is φ = 56416236.

The previous prime is 56416219. The next prime is 56416247. The reversal of 56416237 is 73261465.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39614436 + 16801801 = 6294^2 + 4099^2 .

It is a cyclic number.

It is not a de Polignac number, because 56416237 - 2⁷ = 56416109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56416247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28208118 + 28208119.

It is an arithmetic number, because the mean of its divisors is an integer number (28208119).

Almost surely, 2^56416237 is an apocalyptic number.

It is an amenable number.

56416237 is a deficient number, since it is larger than the sum of its proper divisors (1).

56416237 is an equidigital number, since it uses as much as digits as its factorization.

56416237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 34.

The square root of 56416237 is about 7511.0742906724. The cubic root of 56416237 is about 383.5317938111.

The spelling of 56416237 in words is "fifty-six million, four hundred sixteen thousand, two hundred thirty-seven".