556143225 has 36 divisors (see below), whose sum is σ = 1010695728. Its totient is φ = 269640800.

The previous prime is 556143187. The next prime is 556143227. The reversal of 556143225 is 522341655.

It is not a de Polignac number, because 556143225 - 2⁸ = 556142969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (556143227) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 21567 + ... + 39716.

Almost surely, 2^556143225 is an apocalyptic number.

556143225 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

556143225 is a deficient number, since it is larger than the sum of its proper divisors (454552503).

556143225 is a wasteful number, since it uses less digits than its factorization.

556143225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61318 (or 61302 counting only the distinct ones).

The product of its digits is 36000, while the sum is 33.

The square root of 556143225 is about 23582.6890960297. The cubic root of 556143225 is about 822.3604527931.

The spelling of 556143225 in words is "five hundred fifty-six million, one hundred forty-three thousand, two hundred twenty-five".