56137211 has 4 divisors (see below), whose sum is σ = 60455472. Its totient is φ = 51818952.

The previous prime is 56137199. The next prime is 56137253. The reversal of 56137211 is 11273165.

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

It is a cyclic number.

It is not a de Polignac number, because 56137211 - 2²² = 51942907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56137271) 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, 2159111 + ... + 2159136.

It is an arithmetic number, because the mean of its divisors is an integer number (15113868).

Almost surely, 2^56137211 is an apocalyptic number.

56137211 is a deficient number, since it is larger than the sum of its proper divisors (4318261).

56137211 is a wasteful number, since it uses less digits than its factorization.

56137211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4318260.

The product of its digits is 1260, while the sum is 26.

The square root of 56137211 is about 7492.4769602582. The cubic root of 56137211 is about 382.8984521734.

The spelling of 56137211 in words is "fifty-six million, one hundred thirty-seven thousand, two hundred eleven".