55399349 has 2 divisors, whose sum is σ = 55399350. Its totient is φ = 55399348.

The previous prime is 55399343. The next prime is 55399369. The reversal of 55399349 is 94399355.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45900625 + 9498724 = 6775^2 + 3082^2 .

It is a cyclic number.

It is not a de Polignac number, because 55399349 - 2¹⁶ = 55333813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55399343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27699674 + 27699675.

It is an arithmetic number, because the mean of its divisors is an integer number (27699675).

Almost surely, 2^55399349 is an apocalyptic number.

It is an amenable number.

55399349 is a deficient number, since it is larger than the sum of its proper divisors (1).

55399349 is an equidigital number, since it uses as much as digits as its factorization.

55399349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 656100, while the sum is 47.

The square root of 55399349 is about 7443.0738945680. The cubic root of 55399349 is about 381.2134547430.

The spelling of 55399349 in words is "fifty-five million, three hundred ninety-nine thousand, three hundred forty-nine".