556606674 has 64 divisors (see below), whose sum is σ = 1375073280. Its totient is φ = 165732480.

The previous prime is 556606667. The next prime is 556606679. The reversal of 556606674 is 476606655.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (556606679) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8974 + ... + 34550.

It is an arithmetic number, because the mean of its divisors is an integer number (21485520).

Almost surely, 2^556606674 is an apocalyptic number.

556606674 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 556606674, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (687536640).

556606674 is an abundant number, since it is smaller than the sum of its proper divisors (818466606).

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

556606674 is a wasteful number, since it uses less digits than its factorization.

556606674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25632 (or 25626 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 45.

The square root of 556606674 is about 23592.5130920807. The cubic root of 556606674 is about 822.5888210113.

The spelling of 556606674 in words is "five hundred fifty-six million, six hundred six thousand, six hundred seventy-four".