555561672929 has 2 divisors, whose sum is σ = 555561672930. Its totient is φ = 555561672928.

The previous prime is 555561672871. The next prime is 555561672937. The reversal of 555561672929 is 929276165555.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 288197185600 + 267364487329 = 536840^2 + 517073^2 .

It is a cyclic number.

It is not a de Polignac number, because 555561672929 - 2²⁴ = 555544895713 is a prime.

It is not a weakly prime, because it can be changed into another prime (555561672529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277780836464 + 277780836465.

It is an arithmetic number, because the mean of its divisors is an integer number (277780836465).

Almost surely, 2^555561672929 is an apocalyptic number.

It is an amenable number.

555561672929 is a deficient number, since it is larger than the sum of its proper divisors (1).

555561672929 is an equidigital number, since it uses as much as digits as its factorization.

555561672929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51030000, while the sum is 62.

The spelling of 555561672929 in words is "five hundred fifty-five billion, five hundred sixty-one million, six hundred seventy-two thousand, nine hundred twenty-nine".