551872684 has 24 divisors (see below), whose sum is σ = 1075995648. Its totient is φ = 245513040.

The previous prime is 551872681. The next prime is 551872687. The reversal of 551872684 is 486278155.

It is an interprime number because it is at equal distance from previous prime (551872681) and next prime (551872687).

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (551872681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131364 + ... + 135499.

It is an arithmetic number, because the mean of its divisors is an integer number (44833152).

Almost surely, 2^551872684 is an apocalyptic number.

It is an amenable number.

551872684 is a deficient number, since it is larger than the sum of its proper divisors (524122964).

551872684 is a wasteful number, since it uses less digits than its factorization.

551872684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266925 (or 266923 counting only the distinct ones).

The product of its digits is 537600, while the sum is 46.

The square root of 551872684 is about 23491.9706282806. The cubic root of 551872684 is about 820.2501140660.

The spelling of 551872684 in words is "five hundred fifty-one million, eight hundred seventy-two thousand, six hundred eighty-four".