55739392 has 44 divisors (see below), whose sum is σ = 115327980. Its totient is φ = 26894336.

The previous prime is 55739381. The next prime is 55739399. The reversal of 55739392 is 29393755.

It can be written as a sum of positive squares in 2 ways, for example, as 32080896 + 23658496 = 5664^2 + 4864^2 .

It is not an unprimeable number, because it can be changed into a prime (55739399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28758 + ... + 30634.

Almost surely, 2^55739392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55739392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57663990).

55739392 is an abundant number, since it is smaller than the sum of its proper divisors (59588588).

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

55739392 is a wasteful number, since it uses less digits than its factorization.

55739392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1926 (or 1908 counting only the distinct ones).

The product of its digits is 255150, while the sum is 43.

The square root of 55739392 is about 7465.8818635175. The cubic root of 55739392 is about 381.9918311896.

The spelling of 55739392 in words is "fifty-five million, seven hundred thirty-nine thousand, three hundred ninety-two".