55480249 has 8 divisors (see below), whose sum is σ = 61090848. Its totient is φ = 49964160.

The previous prime is 55480213. The next prime is 55480253. The reversal of 55480249 is 94208455.

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

It is a cyclic number.

It is not a de Polignac number, because 55480249 - 2⁷ = 55480121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55480289) 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, 22392 + ... + 24745.

It is an arithmetic number, because the mean of its divisors is an integer number (7636356).

Almost surely, 2^55480249 is an apocalyptic number.

It is an amenable number.

55480249 is a deficient number, since it is larger than the sum of its proper divisors (5610599).

55480249 is a wasteful number, since it uses less digits than its factorization.

55480249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47255.

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 55480249 is about 7448.5064945934. The cubic root of 55480249 is about 381.3989272512.

The spelling of 55480249 in words is "fifty-five million, four hundred eighty thousand, two hundred forty-nine".