556488099 has 24 divisors (see below), whose sum is σ = 831153024. Its totient is φ = 358416000.

The previous prime is 556488089. The next prime is 556488139. The reversal of 556488099 is 990884655.

It is a happy number.

556488099 is a `hidden beast` number, since 556 + 4 + 8 + 80 + 9 + 9 = 666.

It is a Cunningham number, because it is equal to 23590²-1.

It is not a de Polignac number, because 556488099 - 2¹² = 556484003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (556488089) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 211009 + ... + 213629.

It is an arithmetic number, because the mean of its divisors is an integer number (34631376).

Almost surely, 2^556488099 is an apocalyptic number.

556488099 is a deficient number, since it is larger than the sum of its proper divisors (274664925).

556488099 is a wasteful number, since it uses less digits than its factorization.

556488099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3419 (or 3416 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 54.

The square root of 556488099 is about 23589.9999788046. Note that the first 4 decimals coincide. The cubic root of 556488099 is about 822.5304042985.

The spelling of 556488099 in words is "five hundred fifty-six million, four hundred eighty-eight thousand, ninety-nine".