55104149 has 2 divisors, whose sum is σ = 55104150. Its totient is φ = 55104148.

The previous prime is 55104131. The next prime is 55104197. The reversal of 55104149 is 94140155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41280625 + 13823524 = 6425^2 + 3718^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55104149 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 (55104109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27552074 + 27552075.

It is an arithmetic number, because the mean of its divisors is an integer number (27552075).

Almost surely, 2^55104149 is an apocalyptic number.

It is an amenable number.

55104149 is a deficient number, since it is larger than the sum of its proper divisors (1).

55104149 is an equidigital number, since it uses as much as digits as its factorization.

55104149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 55104149 is about 7423.2168902707. The cubic root of 55104149 is about 380.5351393818.

The spelling of 55104149 in words is "fifty-five million, one hundred four thousand, one hundred forty-nine".