55239370 has 16 divisors (see below), whose sum is σ = 99665280. Its totient is φ = 22043664.

The previous prime is 55239337. The next prime is 55239377. The reversal of 55239370 is 7393255.

55239370 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (55239377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1902 + ... + 10681.

It is an arithmetic number, because the mean of its divisors is an integer number (6229080).

Almost surely, 2^55239370 is an apocalyptic number.

55239370 is a deficient number, since it is larger than the sum of its proper divisors (44425910).

55239370 is a wasteful number, since it uses less digits than its factorization.

55239370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13029.

The product of its (nonzero) digits is 28350, while the sum is 34.

The square root of 55239370 is about 7432.3192880823. The cubic root of 55239370 is about 380.8461523179.

The spelling of 55239370 in words is "fifty-five million, two hundred thirty-nine thousand, three hundred seventy".