55717169929 has 2 divisors, whose sum is σ = 55717169930. Its totient is φ = 55717169928.

The previous prime is 55717169903. The next prime is 55717169939. The reversal of 55717169929 is 92996171755.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55037160000 + 680009929 = 234600^2 + 26077^2 .

It is a cyclic number.

It is not a de Polignac number, because 55717169929 - 2¹¹ = 55717167881 is a prime.

It is not a weakly prime, because it can be changed into another prime (55717169939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27858584964 + 27858584965.

It is an arithmetic number, because the mean of its divisors is an integer number (27858584965).

Almost surely, 2^55717169929 is an apocalyptic number.

It is an amenable number.

55717169929 is a deficient number, since it is larger than the sum of its proper divisors (1).

55717169929 is an equidigital number, since it uses as much as digits as its factorization.

55717169929 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10716300, while the sum is 61.

The spelling of 55717169929 in words is "fifty-five billion, seven hundred seventeen million, one hundred sixty-nine thousand, nine hundred twenty-nine".