56117237 has 4 divisors (see below), whose sum is σ = 61218816. Its totient is φ = 51015660.

The previous prime is 56117227. The next prime is 56117251. The reversal of 56117237 is 73271165.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56117237 - 2¹⁰ = 56116213 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 (56117227) 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, 2550773 + ... + 2550794.

It is an arithmetic number, because the mean of its divisors is an integer number (15304704).

Almost surely, 2^56117237 is an apocalyptic number.

It is an amenable number.

56117237 is a deficient number, since it is larger than the sum of its proper divisors (5101579).

56117237 is a wasteful number, since it uses less digits than its factorization.

56117237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5101578.

The product of its digits is 8820, while the sum is 32.

The square root of 56117237 is about 7491.1439046383. The cubic root of 56117237 is about 382.8530341652.

The spelling of 56117237 in words is "fifty-six million, one hundred seventeen thousand, two hundred thirty-seven".