5615522784 has 72 divisors (see below), whose sum is σ = 16012956960. Its totient is φ = 1866705408.

The previous prime is 5615522771. The next prime is 5615522837. The reversal of 5615522784 is 4872255165.

5615522784 is a `hidden beast` number, since 5 + 615 + 5 + 2 + 27 + 8 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×5615522784² = 63068192275246221312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79132 + ... + 132260.

It is an arithmetic number, because the mean of its divisors is an integer number (222402180).

Almost surely, 2^5615522784 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 5615522784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8006478480).

5615522784 is an abundant number, since it is smaller than the sum of its proper divisors (10397434176).

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

5615522784 is a wasteful number, since it uses less digits than its factorization.

5615522784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53512 (or 53501 counting only the distinct ones).

The product of its digits is 672000, while the sum is 45.

The square root of 5615522784 is about 74936.7919249283. The cubic root of 5615522784 is about 1777.4472923774.

The spelling of 5615522784 in words is "five billion, six hundred fifteen million, five hundred twenty-two thousand, seven hundred eighty-four".