55359949 has 2 divisors, whose sum is σ = 55359950. Its totient is φ = 55359948.

The previous prime is 55359917. The next prime is 55359959. The reversal of 55359949 is 94995355.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52272900 + 3087049 = 7230^2 + 1757^2 .

It is a cyclic number.

It is not a de Polignac number, because 55359949 - 2⁵ = 55359917 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55359959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27679974 + 27679975.

It is an arithmetic number, because the mean of its divisors is an integer number (27679975).

Almost surely, 2^55359949 is an apocalyptic number.

It is an amenable number.

55359949 is a deficient number, since it is larger than the sum of its proper divisors (1).

55359949 is an equidigital number, since it uses as much as digits as its factorization.

55359949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1093500, while the sum is 49.

The square root of 55359949 is about 7440.4266678733. The cubic root of 55359949 is about 381.1230603461.

The spelling of 55359949 in words is "fifty-five million, three hundred fifty-nine thousand, nine hundred forty-nine".