551838868 has 24 divisors (see below), whose sum is σ = 1133508992. Its totient is φ = 230109984.

The previous prime is 551838821. The next prime is 551838871. The reversal of 551838868 is 868838155.

It is a super-2 number, since 2×551838868² = 609052272471042848, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265296 + ... + 267367.

Almost surely, 2^551838868 is an apocalyptic number.

It is an amenable number.

551838868 is an abundant number, since it is smaller than the sum of its proper divisors (581670124).

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

551838868 is a wasteful number, since it uses less digits than its factorization.

551838868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532711 (or 532709 counting only the distinct ones).

The product of its digits is 1843200, while the sum is 52.

The square root of 551838868 is about 23491.2508819773. The cubic root of 551838868 is about 820.2333601146.

The spelling of 551838868 in words is "five hundred fifty-one million, eight hundred thirty-eight thousand, eight hundred sixty-eight".