55282239 has 12 divisors (see below), whose sum is σ = 79979536. Its totient is φ = 36796032.

The previous prime is 55282237. The next prime is 55282247. The reversal of 55282239 is 93228255.

55282239 is a `hidden beast` number, since 552 + 82 + 23 + 9 = 666.

It is not a de Polignac number, because 55282239 - 2¹ = 55282237 is a prime.

It is a super-2 number, since 2×55282239² = 6112251897706242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55282231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1494 + ... + 10620.

Almost surely, 2^55282239 is an apocalyptic number.

55282239 is a deficient number, since it is larger than the sum of its proper divisors (24697297).

55282239 is a wasteful number, since it uses less digits than its factorization.

55282239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9806 (or 9803 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 55282239 is about 7435.2026872171. The cubic root of 55282239 is about 380.9446465143.

The spelling of 55282239 in words is "fifty-five million, two hundred eighty-two thousand, two hundred thirty-nine".