556516201 has 4 divisors (see below), whose sum is σ = 556638804. Its totient is φ = 556393600.

The previous prime is 556516183. The next prime is 556516217. The reversal of 556516201 is 102615655.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 433638976 + 122877225 = 20824^2 + 11085^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-556516201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556516241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54220 + ... + 63661.

It is an arithmetic number, because the mean of its divisors is an integer number (139159701).

Almost surely, 2^556516201 is an apocalyptic number.

It is an amenable number.

556516201 is a deficient number, since it is larger than the sum of its proper divisors (122603).

556516201 is a wasteful number, since it uses less digits than its factorization.

556516201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122602.

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 556516201 is about 23590.5956050287. The cubic root of 556516201 is about 822.5442496742.

The spelling of 556516201 in words is "five hundred fifty-six million, five hundred sixteen thousand, two hundred one".