55008149 has 4 divisors (see below), whose sum is σ = 62866464. Its totient is φ = 47149836.

The previous prime is 55008133. The next prime is 55008169. The reversal of 55008149 is 94180055.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55008149 - 2⁴ = 55008133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55008169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3929147 + ... + 3929160.

It is an arithmetic number, because the mean of its divisors is an integer number (15716616).

Almost surely, 2^55008149 is an apocalyptic number.

It is an amenable number.

55008149 is a deficient number, since it is larger than the sum of its proper divisors (7858315).

55008149 is an equidigital number, since it uses as much as digits as its factorization.

55008149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7858314.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 55008149 is about 7416.7478722146. The cubic root of 55008149 is about 380.3140271241.

The spelling of 55008149 in words is "fifty-five million, eight thousand, one hundred forty-nine".