5515994840 has 32 divisors (see below), whose sum is σ = 12419660880. Its totient is φ = 2204856192.

The previous prime is 5515994839. The next prime is 5515994843. The reversal of 5515994840 is 484995155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5515994843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10667 + ... + 105573.

Almost surely, 2^5515994840 is an apocalyptic number.

It is an amenable number.

5515994840 is an abundant number, since it is smaller than the sum of its proper divisors (6903666040).

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

5515994840 is a wasteful number, since it uses less digits than its factorization.

5515994840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96371 (or 96367 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 50.

The square root of 5515994840 is about 74269.7437722792. The cubic root of 5515994840 is about 1766.8836436166.

The spelling of 5515994840 in words is "five billion, five hundred fifteen million, nine hundred ninety-four thousand, eight hundred forty".