555561672529 has 2 divisors, whose sum is σ = 555561672530. Its totient is φ = 555561672528.

The previous prime is 555561672517. The next prime is 555561672553. The reversal of 555561672529 is 925276165555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 540401414400 + 15160258129 = 735120^2 + 123127^2 .

It is a cyclic number.

It is not a de Polignac number, because 555561672529 - 2¹¹ = 555561670481 is a prime.

It is not a weakly prime, because it can be changed into another prime (555561672629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277780836264 + 277780836265.

It is an arithmetic number, because the mean of its divisors is an integer number (277780836265).

Almost surely, 2^555561672529 is an apocalyptic number.

It is an amenable number.

555561672529 is a deficient number, since it is larger than the sum of its proper divisors (1).

555561672529 is an equidigital number, since it uses as much as digits as its factorization.

555561672529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28350000, while the sum is 58.

The spelling of 555561672529 in words is "five hundred fifty-five billion, five hundred sixty-one million, six hundred seventy-two thousand, five hundred twenty-nine".