556400204 has 6 divisors (see below), whose sum is σ = 973700364. Its totient is φ = 278200100.

The previous prime is 556400203. The next prime is 556400209. The reversal of 556400204 is 402004655.

556400204 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×556400204² = 619162374022483232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (556400203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69550022 + ... + 69550029.

It is an arithmetic number, because the mean of its divisors is an integer number (162283394).

Almost surely, 2^556400204 is an apocalyptic number.

It is an amenable number.

556400204 is a deficient number, since it is larger than the sum of its proper divisors (417300160).

556400204 is a wasteful number, since it uses less digits than its factorization.

556400204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139100055 (or 139100053 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 556400204 is about 23588.1369336368. The cubic root of 556400204 is about 822.4870969234.

Adding to 556400204 its reverse (402004655), we get a palindrome (958404859).

The spelling of 556400204 in words is "five hundred fifty-six million, four hundred thousand, two hundred four".