556689519293 has 2 divisors, whose sum is σ = 556689519294. Its totient is φ = 556689519292.

The previous prime is 556689519257. The next prime is 556689519307. The reversal of 556689519293 is 392915986655.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 400583928889 + 156105590404 = 632917^2 + 395102^2 .

It is a cyclic number.

It is not a de Polignac number, because 556689519293 - 2⁶ = 556689519229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556689519223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278344759646 + 278344759647.

It is an arithmetic number, because the mean of its divisors is an integer number (278344759647).

Almost surely, 2^556689519293 is an apocalyptic number.

It is an amenable number.

556689519293 is a deficient number, since it is larger than the sum of its proper divisors (1).

556689519293 is an equidigital number, since it uses as much as digits as its factorization.

556689519293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 157464000, while the sum is 68.

The spelling of 556689519293 in words is "five hundred fifty-six billion, six hundred eighty-nine million, five hundred nineteen thousand, two hundred ninety-three".