556228901225 has 12 divisors (see below), whose sum is σ = 689771216400. Its totient is φ = 444952554000.

The previous prime is 556228901219. The next prime is 556228901269. The reversal of 556228901225 is 522109822655.

It is not a de Polignac number, because 556228901225 - 2¹² = 556228897129 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 556228901225.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 389351 + ... + 1124300.

It is an arithmetic number, because the mean of its divisors is an integer number (57480934700).

Almost surely, 2^556228901225 is an apocalyptic number.

It is an amenable number.

556228901225 is a deficient number, since it is larger than the sum of its proper divisors (133542315175).

556228901225 is a wasteful number, since it uses less digits than its factorization.

556228901225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1528360 (or 1528355 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 47.

The spelling of 556228901225 in words is "five hundred fifty-six billion, two hundred twenty-eight million, nine hundred one thousand, two hundred twenty-five".