55870216752 has 160 divisors (see below), whose sum is σ = 170201106432. Its totient is φ = 15461793792.

The previous prime is 55870216751. The next prime is 55870216777. The reversal of 55870216752 is 25761207855.

It is a super-2 number, since 2×55870216752² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (55870216751) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1513588 + ... + 1550060.

Almost surely, 2^55870216752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55870216752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85100553216).

55870216752 is an abundant number, since it is smaller than the sum of its proper divisors (114330889680).

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

55870216752 is a wasteful number, since it uses less digits than its factorization.

55870216752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36635 (or 36629 counting only the distinct ones).

The product of its (nonzero) digits is 1176000, while the sum is 48.

The spelling of 55870216752 in words is "fifty-five billion, eight hundred seventy million, two hundred sixteen thousand, seven hundred fifty-two".