551359899 has 16 divisors (see below), whose sum is σ = 817201440. Its totient is φ = 367405920.

The previous prime is 551359871. The next prime is 551359967. The reversal of 551359899 is 998953155.

It is a happy number.

551359899 is a `hidden beast` number, since 551 + 3 + 5 + 9 + 89 + 9 = 666.

551359899 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 551359899 - 2⁸ = 551359643 is a prime.

It is a super-3 number, since 3×551359899³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (551359819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93169 + ... + 98909.

It is an arithmetic number, because the mean of its divisors is an integer number (51075090).

Almost surely, 2^551359899 is an apocalyptic number.

551359899 is a deficient number, since it is larger than the sum of its proper divisors (265841541).

551359899 is a wasteful number, since it uses less digits than its factorization.

551359899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9307 (or 9301 counting only the distinct ones).

The product of its digits is 2187000, while the sum is 54.

The square root of 551359899 is about 23481.0540436327. The cubic root of 551359899 is about 819.9959840176.

The spelling of 551359899 in words is "five hundred fifty-one million, three hundred fifty-nine thousand, eight hundred ninety-nine".