55982251 has 8 divisors (see below), whose sum is σ = 60875360. Its totient is φ = 51172992.

The previous prime is 55982233. The next prime is 55982263. The reversal of 55982251 is 15228955.

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

It is not a de Polignac number, because 55982251 - 2⁵ = 55982219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55982251.

It is not an unprimeable number, because it can be changed into a prime (55982351) 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, 19566 + ... + 22243.

It is an arithmetic number, because the mean of its divisors is an integer number (7609420).

Almost surely, 2^55982251 is an apocalyptic number.

55982251 is a deficient number, since it is larger than the sum of its proper divisors (4893109).

55982251 is a wasteful number, since it uses less digits than its factorization.

55982251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41925.

The product of its digits is 36000, while the sum is 37.

The square root of 55982251 is about 7482.1287746202. The cubic root of 55982251 is about 382.5458125030.

The spelling of 55982251 in words is "fifty-five million, nine hundred eighty-two thousand, two hundred fifty-one".