55189249 has 8 divisors (see below), whose sum is σ = 56459520. Its totient is φ = 53930256.

The previous prime is 55189193. The next prime is 55189261. The reversal of 55189249 is 94298155.

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 55189249 - 2¹¹ = 55187201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55189289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7504 + ... + 12910.

It is an arithmetic number, because the mean of its divisors is an integer number (7057440).

Almost surely, 2^55189249 is an apocalyptic number.

55189249 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

It is an amenable number.

55189249 is a deficient number, since it is larger than the sum of its proper divisors (1270271).

55189249 is a wasteful number, since it uses less digits than its factorization.

55189249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5639.

The product of its digits is 129600, while the sum is 43.

The square root of 55189249 is about 7428.9466951917. The cubic root of 55189249 is about 380.7309315605.

The spelling of 55189249 in words is "fifty-five million, one hundred eighty-nine thousand, two hundred forty-nine".