551531116 has 12 divisors (see below), whose sum is σ = 965482560. Its totient is φ = 275678960.

The previous prime is 551531111. The next prime is 551531117. The reversal of 551531116 is 611135155.

It is not an unprimeable number, because it can be changed into a prime (551531111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6076 + ... + 33763.

It is an arithmetic number, because the mean of its divisors is an integer number (80456880).

Almost surely, 2^551531116 is an apocalyptic number.

It is an amenable number.

551531116 is a deficient number, since it is larger than the sum of its proper divisors (413951444).

551531116 is a wasteful number, since it uses less digits than its factorization.

551531116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43304 (or 43302 counting only the distinct ones).

The product of its digits is 2250, while the sum is 28.

The square root of 551531116 is about 23484.6996148556. The cubic root of 551531116 is about 820.0808546090.

The spelling of 551531116 in words is "five hundred fifty-one million, five hundred thirty-one thousand, one hundred sixteen".