5515987232 has 144 divisors (see below), whose sum is σ = 13396900608. Its totient is φ = 2225180160.

The previous prime is 5515987219. The next prime is 5515987241. The reversal of 5515987232 is 2327895155.

It is a super-2 number, since 2×5515987232² = 60852230287174043648, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1796963 + ... + 1800029.

It is an arithmetic number, because the mean of its divisors is an integer number (93034032).

Almost surely, 2^5515987232 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 5515987232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6698450304).

5515987232 is an abundant number, since it is smaller than the sum of its proper divisors (7880913376).

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

5515987232 is a wasteful number, since it uses less digits than its factorization.

5515987232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3159 (or 3144 counting only the distinct ones).

The product of its digits is 756000, while the sum is 47.

The square root of 5515987232 is about 74269.6925535578. The cubic root of 5515987232 is about 1766.8828312847.

The spelling of 5515987232 in words is "five billion, five hundred fifteen million, nine hundred eighty-seven thousand, two hundred thirty-two".