554403656 has 16 divisors (see below), whose sum is σ = 1039824240. Its totient is φ = 277117200.

The previous prime is 554403653. The next prime is 554403673. The reversal of 554403656 is 656304455.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (554403653) by changing a digit.

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, 23855 + ... + 40961.

It is an arithmetic number, because the mean of its divisors is an integer number (64989015).

Almost surely, 2^554403656 is an apocalyptic number.

It is an amenable number.

554403656 is a deficient number, since it is larger than the sum of its proper divisors (485420584).

554403656 is a wasteful number, since it uses less digits than its factorization.

554403656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21164 (or 21160 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 38.

The square root of 554403656 is about 23545.7778805458. Note that the first 3 decimals coincide. The cubic root of 554403656 is about 821.5021325902.

The spelling of 554403656 in words is "five hundred fifty-four million, four hundred three thousand, six hundred fifty-six".