56237236687 has 4 divisors (see below), whose sum is σ = 56242321960. Its totient is φ = 56232151416.

The previous prime is 56237236669. The next prime is 56237236691. The reversal of 56237236687 is 78663273265.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78663273265 = 5 ⋅15732654653.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56237236687 is a prime.

It is a super-3 number, since 3×56237236687³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56237236637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2526012 + ... + 2548177.

It is an arithmetic number, because the mean of its divisors is an integer number (14060580490).

Almost surely, 2^56237236687 is an apocalyptic number.

56237236687 is a deficient number, since it is larger than the sum of its proper divisors (5085273).

56237236687 is a wasteful number, since it uses less digits than its factorization.

56237236687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5085272.

The product of its digits is 15240960, while the sum is 55.

The spelling of 56237236687 in words is "fifty-six billion, two hundred thirty-seven million, two hundred thirty-six thousand, six hundred eighty-seven".