55000249 has 8 divisors (see below), whose sum is σ = 55694912. Its totient is φ = 54308880.

The previous prime is 55000243. The next prime is 55000259. The reversal of 55000249 is 94200055.

55000249 = 26² + 27² + ... + 548².

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 55000249 - 2¹¹ = 54998201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55000243) 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, 53359 + ... + 54379.

It is an arithmetic number, because the mean of its divisors is an integer number (6961864).

Almost surely, 2^55000249 is an apocalyptic number.

It is an amenable number.

55000249 is a deficient number, since it is larger than the sum of its proper divisors (694663).

55000249 is a wasteful number, since it uses less digits than its factorization.

55000249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1647.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 55000249 is about 7416.2152746532. The cubic root of 55000249 is about 380.2958199754.

The spelling of 55000249 in words is "fifty-five million, two hundred forty-nine", and thus it is an aban number.