56137285 has 4 divisors (see below), whose sum is σ = 67364748. Its totient is φ = 44909824.

The previous prime is 56137283. The next prime is 56137297. The reversal of 56137285 is 58273165.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31911201 + 24226084 = 5649^2 + 4922^2 .

It is a cyclic number.

It is not a de Polignac number, because 56137285 - 2¹ = 56137283 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56137283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5613724 + ... + 5613733.

It is an arithmetic number, because the mean of its divisors is an integer number (16841187).

Almost surely, 2^56137285 is an apocalyptic number.

It is an amenable number.

56137285 is a deficient number, since it is larger than the sum of its proper divisors (11227463).

56137285 is a wasteful number, since it uses less digits than its factorization.

56137285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11227462.

The product of its digits is 50400, while the sum is 37.

The square root of 56137285 is about 7492.4818985434. The cubic root of 56137285 is about 382.8986204188.

The spelling of 56137285 in words is "fifty-six million, one hundred thirty-seven thousand, two hundred eighty-five".