556422081 has 4 divisors (see below), whose sum is σ = 741896112. Its totient is φ = 370948052.

The previous prime is 556422073. The next prime is 556422089. The reversal of 556422081 is 180224655.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (556422073) and next prime (556422089).

It is a cyclic number.

It is not a de Polignac number, because 556422081 - 2³ = 556422073 is a prime.

It is a super-2 number, since 2×556422081² = 619211064448741122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (556422089) 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, 92737011 + ... + 92737016.

It is an arithmetic number, because the mean of its divisors is an integer number (185474028).

Almost surely, 2^556422081 is an apocalyptic number.

It is an amenable number.

556422081 is a deficient number, since it is larger than the sum of its proper divisors (185474031).

556422081 is a wasteful number, since it uses less digits than its factorization.

556422081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185474030.

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 556422081 is about 23588.6006579449. The cubic root of 556422081 is about 822.4978765231.

The spelling of 556422081 in words is "five hundred fifty-six million, four hundred twenty-two thousand, eighty-one".