55984259 has 4 divisors (see below), whose sum is σ = 56130816. Its totient is φ = 55837704.

The previous prime is 55984223. The next prime is 55984261. The reversal of 55984259 is 95248955.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95248955 = 5 ⋅19049791.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55984259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55984289) 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, 72704 + ... + 73469.

It is an arithmetic number, because the mean of its divisors is an integer number (14032704).

Almost surely, 2^55984259 is an apocalyptic number.

55984259 is a deficient number, since it is larger than the sum of its proper divisors (146557).

55984259 is a wasteful number, since it uses less digits than its factorization.

55984259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146556.

The product of its digits is 648000, while the sum is 47.

The square root of 55984259 is about 7482.2629598271. The cubic root of 55984259 is about 382.5503862312.

The spelling of 55984259 in words is "fifty-five million, nine hundred eighty-four thousand, two hundred fifty-nine".