55582439 has 12 divisors (see below), whose sum is σ = 61592832. Its totient is φ = 50117760.

The previous prime is 55582427. The next prime is 55582447. The reversal of 55582439 is 93428555.

It is not a de Polignac number, because 55582439 - 2¹² = 55578343 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55582396 and 55582405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55582409) 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, 13559 + ... + 17175.

It is an arithmetic number, because the mean of its divisors is an integer number (5132736).

Almost surely, 2^55582439 is an apocalyptic number.

55582439 is a deficient number, since it is larger than the sum of its proper divisors (6010393).

55582439 is a wasteful number, since it uses less digits than its factorization.

55582439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3766 (or 3755 counting only the distinct ones).

The product of its digits is 216000, while the sum is 41.

The square root of 55582439 is about 7455.3631031627. The cubic root of 55582439 is about 381.6329519829.

It can be divided in two parts, 5558 and 2439, that added together give a palindrome (7997).

The spelling of 55582439 in words is "fifty-five million, five hundred eighty-two thousand, four hundred thirty-nine".