556251413 has 2 divisors, whose sum is σ = 556251414. Its totient is φ = 556251412.

The previous prime is 556251379. The next prime is 556251433. The reversal of 556251413 is 314152655.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 359747089 + 196504324 = 18967^2 + 14018^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-556251413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 556251413.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556251433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278125706 + 278125707.

It is an arithmetic number, because the mean of its divisors is an integer number (278125707).

Almost surely, 2^556251413 is an apocalyptic number.

It is an amenable number.

556251413 is a deficient number, since it is larger than the sum of its proper divisors (1).

556251413 is an equidigital number, since it uses as much as digits as its factorization.

556251413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18000, while the sum is 32.

The square root of 556251413 is about 23584.9827856626. The cubic root of 556251413 is about 822.4137746474.

The spelling of 556251413 in words is "five hundred fifty-six million, two hundred fifty-one thousand, four hundred thirteen".