55239606 has 96 divisors (see below), whose sum is σ = 133436160. Its totient is φ = 16454592.

The previous prime is 55239529. The next prime is 55239607. The reversal of 55239606 is 60693255.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55239607) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 516205 + ... + 516311.

It is an arithmetic number, because the mean of its divisors is an integer number (1389960).

Almost surely, 2^55239606 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55239606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66718080).

55239606 is an abundant number, since it is smaller than the sum of its proper divisors (78196554).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55239606 is a wasteful number, since it uses less digits than its factorization.

55239606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 36.

The square root of 55239606 is about 7432.3351646707. The cubic root of 55239606 is about 380.8466946820.

It can be divided in two parts, 5523 and 9606, that added together give a square (15129 = 123²).

The spelling of 55239606 in words is "fifty-five million, two hundred thirty-nine thousand, six hundred six".