55433429 has 2 divisors, whose sum is σ = 55433430. Its totient is φ = 55433428.

The previous prime is 55433387. The next prime is 55433453. The reversal of 55433429 is 92433455.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52200625 + 3232804 = 7225^2 + 1798^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55433429 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55433029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27716714 + 27716715.

It is an arithmetic number, because the mean of its divisors is an integer number (27716715).

Almost surely, 2^55433429 is an apocalyptic number.

It is an amenable number.

55433429 is a deficient number, since it is larger than the sum of its proper divisors (1).

55433429 is an equidigital number, since it uses as much as digits as its factorization.

55433429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64800, while the sum is 35.

The square root of 55433429 is about 7445.3629192941. The cubic root of 55433429 is about 381.2916090393.

The spelling of 55433429 in words is "fifty-five million, four hundred thirty-three thousand, four hundred twenty-nine".