551402886 has 16 divisors (see below), whose sum is σ = 1113113664. Its totient is φ = 182082984.

The previous prime is 551402881. The next prime is 551402903. The reversal of 551402886 is 688204155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551402881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 428800 + ... + 430083.

It is an arithmetic number, because the mean of its divisors is an integer number (69569604).

Almost surely, 2^551402886 is an apocalyptic number.

551402886 is an abundant number, since it is smaller than the sum of its proper divisors (561710778).

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

551402886 is a wasteful number, since it uses less digits than its factorization.

551402886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858995.

The product of its (nonzero) digits is 76800, while the sum is 39.

The square root of 551402886 is about 23481.9693807824. The cubic root of 551402886 is about 820.0172939046.

The spelling of 551402886 in words is "five hundred fifty-one million, four hundred two thousand, eight hundred eighty-six".