56131373 has 2 divisors, whose sum is σ = 56131374. Its totient is φ = 56131372.

The previous prime is 56131363. The next prime is 56131391. The reversal of 56131373 is 37313165.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42016324 + 14115049 = 6482^2 + 3757^2 .

It is a cyclic number.

It is not a de Polignac number, because 56131373 - 2¹² = 56127277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56131303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28065686 + 28065687.

It is an arithmetic number, because the mean of its divisors is an integer number (28065687).

Almost surely, 2^56131373 is an apocalyptic number.

It is an amenable number.

56131373 is a deficient number, since it is larger than the sum of its proper divisors (1).

56131373 is an equidigital number, since it uses as much as digits as its factorization.

56131373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5670, while the sum is 29.

The square root of 56131373 is about 7492.0873593412. The cubic root of 56131373 is about 382.8851785140.

The spelling of 56131373 in words is "fifty-six million, one hundred thirty-one thousand, three hundred seventy-three".