556385330 has 8 divisors (see below), whose sum is σ = 1001493612. Its totient is φ = 222554128.

The previous prime is 556385311. The next prime is 556385363. The reversal of 556385330 is 33583655.

It can be written as a sum of positive squares in 2 ways, for example, as 508457401 + 47927929 = 22549^2 + 6923^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27819257 + ... + 27819276.

Almost surely, 2^556385330 is an apocalyptic number.

556385330 is a deficient number, since it is larger than the sum of its proper divisors (445108282).

556385330 is a wasteful number, since it uses less digits than its factorization.

556385330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55638540.

The product of its (nonzero) digits is 162000, while the sum is 38.

The square root of 556385330 is about 23587.8216459257. The cubic root of 556385330 is about 822.4797677971.

The spelling of 556385330 in words is "five hundred fifty-six million, three hundred eighty-five thousand, three hundred thirty".