55339424 has 72 divisors (see below), whose sum is σ = 131215140. Its totient is φ = 22880256.

The previous prime is 55339411. The next prime is 55339429. The reversal of 55339424 is 42493355.

It can be written as a sum of positive squares in 2 ways, for example, as 55056400 + 283024 = 7420^2 + 532^2 .

It is not an unprimeable number, because it can be changed into a prime (55339429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44864 + ... + 46080.

Almost surely, 2^55339424 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 55339424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65607570).

55339424 is an abundant number, since it is smaller than the sum of its proper divisors (75875716).

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

55339424 is a wasteful number, since it uses less digits than its factorization.

55339424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1270 (or 1255 counting only the distinct ones).

The product of its digits is 64800, while the sum is 35.

The square root of 55339424 is about 7439.0472508245. The cubic root of 55339424 is about 381.0759533798.

The spelling of 55339424 in words is "fifty-five million, three hundred thirty-nine thousand, four hundred twenty-four".