556818132 has 96 divisors (see below), whose sum is σ = 1467648000. Its totient is φ = 163025280.

The previous prime is 556818131. The next prime is 556818133. The reversal of 556818132 is 231818655.

It is an interprime number because it is at equal distance from previous prime (556818131) and next prime (556818133).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556818131) 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 31 ways as a sum of consecutive naturals, for example, 1115619 + ... + 1116117.

It is an arithmetic number, because the mean of its divisors is an integer number (15288000).

Almost surely, 2^556818132 is an apocalyptic number.

556818132 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 556818132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (733824000).

556818132 is an abundant number, since it is smaller than the sum of its proper divisors (910829868).

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

556818132 is a wasteful number, since it uses less digits than its factorization.

556818132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 853 (or 851 counting only the distinct ones).

The product of its digits is 57600, while the sum is 39.

The square root of 556818132 is about 23596.9941306091. The cubic root of 556818132 is about 822.6929765262.

The spelling of 556818132 in words is "five hundred fifty-six million, eight hundred eighteen thousand, one hundred thirty-two".