55380539 has 4 divisors (see below), whose sum is σ = 57167040. Its totient is φ = 53594040.

The previous prime is 55380529. The next prime is 55380551. The reversal of 55380539 is 93508355.

55380539 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 55380539 - 2¹² = 55376443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55380529) 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 3 ways as a sum of consecutive naturals, for example, 893204 + ... + 893265.

It is an arithmetic number, because the mean of its divisors is an integer number (14291760).

Almost surely, 2^55380539 is an apocalyptic number.

55380539 is a deficient number, since it is larger than the sum of its proper divisors (1786501).

55380539 is a wasteful number, since it uses less digits than its factorization.

55380539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1786500.

The product of its (nonzero) digits is 81000, while the sum is 38.

The square root of 55380539 is about 7441.8101964509. The cubic root of 55380539 is about 381.1703047968.

The spelling of 55380539 in words is "fifty-five million, three hundred eighty thousand, five hundred thirty-nine".