56215377152 has 72 divisors (see below), whose sum is σ = 122578532832. Its totient is φ = 25517721600.

The previous prime is 56215377143. The next prime is 56215377209. The reversal of 56215377152 is 25177351265.

It is a super-2 number, since 2×56215377152² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2118527 + ... + 2144897.

Almost surely, 2^56215377152 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 56215377152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61289266416).

56215377152 is an abundant number, since it is smaller than the sum of its proper divisors (66363155680).

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

56215377152 is a wasteful number, since it uses less digits than its factorization.

56215377152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27155 (or 27141 counting only the distinct ones).

The product of its digits is 441000, while the sum is 44.

The spelling of 56215377152 in words is "fifty-six billion, two hundred fifteen million, three hundred seventy-seven thousand, one hundred fifty-two".