55433839427 has 2 divisors, whose sum is σ = 55433839428. Its totient is φ = 55433839426.

The previous prime is 55433839397. The next prime is 55433839429. The reversal of 55433839427 is 72493833455.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55433839427 - 2¹⁴ = 55433823043 is a prime.

Together with 55433839429, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55433839429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27716919713 + 27716919714.

It is an arithmetic number, because the mean of its divisors is an integer number (27716919714).

Almost surely, 2^55433839427 is an apocalyptic number.

55433839427 is a deficient number, since it is larger than the sum of its proper divisors (1).

55433839427 is an equidigital number, since it uses as much as digits as its factorization.

55433839427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10886400, while the sum is 53.

The spelling of 55433839427 in words is "fifty-five billion, four hundred thirty-three million, eight hundred thirty-nine thousand, four hundred twenty-seven".