55432423429 has 2 divisors, whose sum is σ = 55432423430. Its totient is φ = 55432423428.

The previous prime is 55432423381. The next prime is 55432423471. The reversal of 55432423429 is 92432423455.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55412218404 + 20205025 = 235398^2 + 4495^2 .

It is a cyclic number.

It is not a de Polignac number, because 55432423429 - 2³⁵ = 21072685061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55432427429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27716211714 + 27716211715.

It is an arithmetic number, because the mean of its divisors is an integer number (27716211715).

Almost surely, 2^55432423429 is an apocalyptic number.

It is an amenable number.

55432423429 is a deficient number, since it is larger than the sum of its proper divisors (1).

55432423429 is an equidigital number, since it uses as much as digits as its factorization.

55432423429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1036800, while the sum is 43.

The spelling of 55432423429 in words is "fifty-five billion, four hundred thirty-two million, four hundred twenty-three thousand, four hundred twenty-nine".