556426089 has 24 divisors (see below), whose sum is σ = 819998400. Its totient is φ = 363499488.

The previous prime is 556426067. The next prime is 556426111. The reversal of 556426089 is 980624655.

556426089 is a `hidden beast` number, since 5 + 564 + 2 + 6 + 0 + 89 = 666.

It is an interprime number because it is at equal distance from previous prime (556426067) and next prime (556426111).

It is not a de Polignac number, because 556426089 - 2⁸ = 556425833 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (556426889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 117679 + ... + 122315.

It is an arithmetic number, because the mean of its divisors is an integer number (34166600).

Almost surely, 2^556426089 is an apocalyptic number.

It is an amenable number.

556426089 is a deficient number, since it is larger than the sum of its proper divisors (263572311).

556426089 is a wasteful number, since it uses less digits than its factorization.

556426089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4909 (or 4906 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The square root of 556426089 is about 23588.6856140820. The cubic root of 556426089 is about 822.4998513810.

The spelling of 556426089 in words is "five hundred fifty-six million, four hundred twenty-six thousand, eighty-nine".