556217201 has 16 divisors (see below), whose sum is σ = 573001728. Its totient is φ = 539784000.

The previous prime is 556217173. The next prime is 556217209. The reversal of 556217201 is 102712655.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-556217201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556217209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1320971 + ... + 1321391.

It is an arithmetic number, because the mean of its divisors is an integer number (35812608).

Almost surely, 2^556217201 is an apocalyptic number.

It is an amenable number.

556217201 is a deficient number, since it is larger than the sum of its proper divisors (16784527).

556217201 is a wasteful number, since it uses less digits than its factorization.

556217201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 556217201 is about 23584.2574824818. The cubic root of 556217201 is about 822.3969135685.

Adding to 556217201 its reverse (102712655), we get a palindrome (658929856).

The spelling of 556217201 in words is "five hundred fifty-six million, two hundred seventeen thousand, two hundred one".