551345982 has 32 divisors (see below), whose sum is σ = 1203914880. Its totient is φ = 166938720.

The previous prime is 551345953. The next prime is 551346007. The reversal of 551345982 is 289543155.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103869 + ... + 109047.

It is an arithmetic number, because the mean of its divisors is an integer number (37622340).

Almost surely, 2^551345982 is an apocalyptic number.

551345982 is an abundant number, since it is smaller than the sum of its proper divisors (652568898).

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

551345982 is a wasteful number, since it uses less digits than its factorization.

551345982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6808.

The product of its digits is 216000, while the sum is 42.

The square root of 551345982 is about 23480.7576964629. The cubic root of 551345982 is about 819.9890847248.

It can be divided in two parts, 55134 and 5982, that added together give a palindrome (61116).

The spelling of 551345982 in words is "five hundred fifty-one million, three hundred forty-five thousand, nine hundred eighty-two".