556969998 has 64 divisors (see below), whose sum is σ = 1258367040. Its totient is φ = 163150848.

The previous prime is 556969979. The next prime is 556970003. The reversal of 556969998 is 899969655.

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 31 ways as a sum of consecutive naturals, for example, 163440 + ... + 166812.

It is an arithmetic number, because the mean of its divisors is an integer number (19661985).

Almost surely, 2^556969998 is an apocalyptic number.

556969998 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 556969998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (629183520).

556969998 is an abundant number, since it is smaller than the sum of its proper divisors (701397042).

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

556969998 is a wasteful number, since it uses less digits than its factorization.

556969998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3493.

The product of its digits is 47239200, while the sum is 66.

The square root of 556969998 is about 23600.2118210833. The cubic root of 556969998 is about 822.7677632040.

The spelling of 556969998 in words is "five hundred fifty-six million, nine hundred sixty-nine thousand, nine hundred ninety-eight".