56438052216 has 96 divisors (see below), whose sum is σ = 176756585040. Its totient is φ = 14884756992.

The previous prime is 56438052179. The next prime is 56438052217. The reversal of 56438052216 is 61225083465.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56438052217) 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 23 ways as a sum of consecutive naturals, for example, 1830541 + ... + 1861116.

Almost surely, 2^56438052216 is an apocalyptic number.

56438052216 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

56438052216 is an abundant number, since it is smaller than the sum of its proper divisors (120318532824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56438052216 is a wasteful number, since it uses less digits than its factorization.

56438052216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3691693 (or 3691682 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 42.

The spelling of 56438052216 in words is "fifty-six billion, four hundred thirty-eight million, fifty-two thousand, two hundred sixteen".