55479149 has 8 divisors (see below), whose sum is σ = 61426848. Its totient is φ = 49682160.

The previous prime is 55479139. The next prime is 55479161. The reversal of 55479149 is 94197455.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-55479149 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 (55479139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36902 + ... + 38375.

It is an arithmetic number, because the mean of its divisors is an integer number (7678356).

Almost surely, 2^55479149 is an apocalyptic number.

It is an amenable number.

55479149 is a deficient number, since it is larger than the sum of its proper divisors (5947699).

55479149 is a wasteful number, since it uses less digits than its factorization.

55479149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75355.

The product of its digits is 226800, while the sum is 44.

The square root of 55479149 is about 7448.4326539212. The cubic root of 55479149 is about 381.3964065848.

The spelling of 55479149 in words is "fifty-five million, four hundred seventy-nine thousand, one hundred forty-nine".