556149994 has 32 divisors (see below), whose sum is σ = 888330240. Its totient is φ = 260668800.

The previous prime is 556149983. The next prime is 556150027. The reversal of 556149994 is 499941655.

It is a happy number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 644007 + ... + 644869.

It is an arithmetic number, because the mean of its divisors is an integer number (27760320).

Almost surely, 2^556149994 is an apocalyptic number.

556149994 is a deficient number, since it is larger than the sum of its proper divisors (332180246).

556149994 is a wasteful number, since it uses less digits than its factorization.

556149994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1206.

The product of its digits is 1749600, while the sum is 52.

The square root of 556149994 is about 23582.8326118810. The cubic root of 556149994 is about 822.3637891850.

It can be divided in two parts, 5561 and 49994, that added together give a palindrome (55555).

The spelling of 556149994 in words is "five hundred fifty-six million, one hundred forty-nine thousand, nine hundred ninety-four".