56580261837 has 16 divisors (see below), whose sum is σ = 82302732288. Its totient is φ = 34289330480.

The previous prime is 56580261799. The next prime is 56580261841. The reversal of 56580261837 is 73816208565.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 56580261837 - 2¹⁶ = 56580196301 is a prime.

It is a super-2 number, since 2×56580261837² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 56580261837.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56580261337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 972388 + ... + 1028930.

It is an arithmetic number, because the mean of its divisors is an integer number (5143920768).

Almost surely, 2^56580261837 is an apocalyptic number.

It is an amenable number.

56580261837 is a deficient number, since it is larger than the sum of its proper divisors (25722470451).

56580261837 is a wasteful number, since it uses less digits than its factorization.

56580261837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86880.

The product of its (nonzero) digits is 2419200, while the sum is 51.

The spelling of 56580261837 in words is "fifty-six billion, five hundred eighty million, two hundred sixty-one thousand, eight hundred thirty-seven".