551498616 has 96 divisors (see below), whose sum is σ = 1542169200. Its totient is φ = 177914880.

The previous prime is 551498609. The next prime is 551498627. The reversal of 551498616 is 616894155.

551498616 is a `hidden beast` number, since 551 + 4 + 9 + 86 + 16 = 666.

It is a congruent number.

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, 641595 + ... + 642453.

Almost surely, 2^551498616 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 551498616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (771084600).

551498616 is an abundant number, since it is smaller than the sum of its proper divisors (990670584).

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

551498616 is a wasteful number, since it uses less digits than its factorization.

551498616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1149 (or 1142 counting only the distinct ones).

The product of its digits is 259200, while the sum is 45.

The square root of 551498616 is about 23484.0076647918. The cubic root of 551498616 is about 820.0647460278.

The spelling of 551498616 in words is "five hundred fifty-one million, four hundred ninety-eight thousand, six hundred sixteen".