56237149 has 2 divisors, whose sum is σ = 56237150. Its totient is φ = 56237148.

The previous prime is 56237147. The next prime is 56237179. The reversal of 56237149 is 94173265.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38217124 + 18020025 = 6182^2 + 4245^2 .

It is a cyclic number.

It is not a de Polignac number, because 56237149 - 2¹ = 56237147 is a prime.

Together with 56237147, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56237141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28118574 + 28118575.

It is an arithmetic number, because the mean of its divisors is an integer number (28118575).

Almost surely, 2^56237149 is an apocalyptic number.

It is an amenable number.

56237149 is a deficient number, since it is larger than the sum of its proper divisors (1).

56237149 is an equidigital number, since it uses as much as digits as its factorization.

56237149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 37.

The square root of 56237149 is about 7499.1432177283. The cubic root of 56237149 is about 383.1255351818.

The spelling of 56237149 in words is "fifty-six million, two hundred thirty-seven thousand, one hundred forty-nine".