55259638 has 16 divisors (see below), whose sum is σ = 99717120. Its totient is φ = 22436136.

The previous prime is 55259597. The next prime is 55259641. The reversal of 55259638 is 83695255.

It is a junction number, because it is equal to n+sod(n) for n = 55259594 and 55259603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103606 + ... + 104137.

It is an arithmetic number, because the mean of its divisors is an integer number (6232320).

Almost surely, 2^55259638 is an apocalyptic number.

55259638 is a deficient number, since it is larger than the sum of its proper divisors (44457482).

55259638 is a wasteful number, since it uses less digits than its factorization.

55259638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207771.

The product of its digits is 324000, while the sum is 43.

The square root of 55259638 is about 7433.6826674267. The cubic root of 55259638 is about 380.8927256583.

The spelling of 55259638 in words is "fifty-five million, two hundred fifty-nine thousand, six hundred thirty-eight".