55402349 has 2 divisors, whose sum is σ = 55402350. Its totient is φ = 55402348.

The previous prime is 55402279. The next prime is 55402379. The reversal of 55402349 is 94320455.

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., 54125449 + 1276900 = 7357^2 + 1130^2 .

It is a cyclic number.

It is not a de Polignac number, because 55402349 - 2²⁰ = 54353773 is a prime.

It is a Sophie Germain prime.

It is a Chen 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 (55402379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27701174 + 27701175.

It is an arithmetic number, because the mean of its divisors is an integer number (27701175).

Almost surely, 2^55402349 is an apocalyptic number.

It is an amenable number.

55402349 is a deficient number, since it is larger than the sum of its proper divisors (1).

55402349 is an equidigital number, since it uses as much as digits as its factorization.

55402349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 55402349 is about 7443.2754214794. The cubic root of 55402349 is about 381.2203358090.

The spelling of 55402349 in words is "fifty-five million, four hundred two thousand, three hundred forty-nine".