556361958 has 16 divisors (see below), whose sum is σ = 1178178480. Its totient is φ = 174544896.

The previous prime is 556361957. The next prime is 556362017. The reversal of 556361958 is 859163655.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556361957) 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 7 ways as a sum of consecutive naturals, for example, 2727163 + ... + 2727366.

It is an arithmetic number, because the mean of its divisors is an integer number (73636155).

Almost surely, 2^556361958 is an apocalyptic number.

556361958 is an abundant number, since it is smaller than the sum of its proper divisors (621816522).

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

556361958 is a wasteful number, since it uses less digits than its factorization.

556361958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5454551.

The product of its digits is 972000, while the sum is 48.

The square root of 556361958 is about 23587.3262155760. The cubic root of 556361958 is about 822.4682510387.

The spelling of 556361958 in words is "five hundred fifty-six million, three hundred sixty-one thousand, nine hundred fifty-eight".