556432234649 has 2 divisors, whose sum is σ = 556432234650. Its totient is φ = 556432234648.

The previous prime is 556432234583. The next prime is 556432234663. The reversal of 556432234649 is 946432234655.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 549737722249 + 6694512400 = 741443^2 + 81820^2 .

It is a cyclic number.

It is not a de Polignac number, because 556432234649 - 2²⁸ = 556163799193 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 556432234649.

It is not a weakly prime, because it can be changed into another prime (556432234669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278216117324 + 278216117325.

It is an arithmetic number, because the mean of its divisors is an integer number (278216117325).

Almost surely, 2^556432234649 is an apocalyptic number.

It is an amenable number.

556432234649 is a deficient number, since it is larger than the sum of its proper divisors (1).

556432234649 is an equidigital number, since it uses as much as digits as its factorization.

556432234649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18662400, while the sum is 53.

The spelling of 556432234649 in words is "five hundred fifty-six billion, four hundred thirty-two million, two hundred thirty-four thousand, six hundred forty-nine".