556441369 has 24 divisors (see below), whose sum is σ = 642358080. Its totient is φ = 480728160.

The previous prime is 556441343. The next prime is 556441397. The reversal of 556441369 is 963144655.

It is not a de Polignac number, because 556441369 - 2⁵ = 556441337 is a prime.

It is a super-2 number, since 2×556441369² = 619253994269188322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556441339) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 497599 + ... + 498715.

It is an arithmetic number, because the mean of its divisors is an integer number (26764920).

Almost surely, 2^556441369 is an apocalyptic number.

It is an amenable number.

556441369 is a deficient number, since it is larger than the sum of its proper divisors (85916711).

556441369 is a wasteful number, since it uses less digits than its factorization.

556441369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341 (or 1330 counting only the distinct ones).

The product of its digits is 388800, while the sum is 43.

The square root of 556441369 is about 23589.0094959496. The cubic root of 556441369 is about 822.5073801933.

The spelling of 556441369 in words is "five hundred fifty-six million, four hundred forty-one thousand, three hundred sixty-nine".