551876646 has 32 divisors (see below), whose sum is σ = 1132185600. Its totient is φ = 179232320.

The previous prime is 551876621. The next prime is 551876657. The reversal of 551876646 is 646678155.

It is a junction number, because it is equal to n+sod(n) for n = 551876595 and 551876604.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 353215 + ... + 354773.

It is an arithmetic number, because the mean of its divisors is an integer number (35380800).

Almost surely, 2^551876646 is an apocalyptic number.

551876646 is an abundant number, since it is smaller than the sum of its proper divisors (580308954).

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

551876646 is a wasteful number, since it uses less digits than its factorization.

551876646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3044.

The product of its digits is 1209600, while the sum is 48.

The square root of 551876646 is about 23492.0549548140. The cubic root of 551876646 is about 820.2520769724.

The spelling of 551876646 in words is "five hundred fifty-one million, eight hundred seventy-six thousand, six hundred forty-six".