551505116 has 6 divisors (see below), whose sum is σ = 965133960. Its totient is φ = 275752556.

The previous prime is 551505113. The next prime is 551505137. The reversal of 551505116 is 611505155.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551505113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68938136 + ... + 68938143.

It is an arithmetic number, because the mean of its divisors is an integer number (160855660).

Almost surely, 2^551505116 is an apocalyptic number.

It is an amenable number.

551505116 is a deficient number, since it is larger than the sum of its proper divisors (413628844).

551505116 is a wasteful number, since it uses less digits than its factorization.

551505116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137876283 (or 137876281 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 29.

The square root of 551505116 is about 23484.1460564356. The cubic root of 551505116 is about 820.0679677947.

The spelling of 551505116 in words is "five hundred fifty-one million, five hundred five thousand, one hundred sixteen".