556121264 has 10 divisors (see below), whose sum is σ = 1077484980. Its totient is φ = 278060624.

The previous prime is 556121263. The next prime is 556121287. The reversal of 556121264 is 462121655.

It is a self number, because there is not a number n which added to its sum of digits gives 556121264.

It is not an unprimeable number, because it can be changed into a prime (556121263) 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 as a sum of consecutive naturals, namely, 17378774 + ... + 17378805.

It is an arithmetic number, because the mean of its divisors is an integer number (107748498).

Almost surely, 2^556121264 is an apocalyptic number.

It is an amenable number.

556121264 is a deficient number, since it is larger than the sum of its proper divisors (521363716).

556121264 is a wasteful number, since it uses less digits than its factorization.

556121264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34757587 (or 34757581 counting only the distinct ones).

The product of its digits is 14400, while the sum is 32.

The square root of 556121264 is about 23582.2234744733. The cubic root of 556121264 is about 822.3496281860.

The spelling of 556121264 in words is "five hundred fifty-six million, one hundred twenty-one thousand, two hundred sixty-four".