55359839 has 4 divisors (see below), whose sum is σ = 55390440. Its totient is φ = 55329240.

The previous prime is 55359793. The next prime is 55359841. The reversal of 55359839 is 93895355.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 55359839 - 2¹² = 55355743 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55359793 and 55359802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55359539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12404 + ... + 16265.

It is an arithmetic number, because the mean of its divisors is an integer number (13847610).

Almost surely, 2^55359839 is an apocalyptic number.

55359839 is a deficient number, since it is larger than the sum of its proper divisors (30601).

55359839 is a wasteful number, since it uses less digits than its factorization.

55359839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30600.

The product of its digits is 729000, while the sum is 47.

The square root of 55359839 is about 7440.4192758204. The cubic root of 55359839 is about 381.1228079160.

The spelling of 55359839 in words is "fifty-five million, three hundred fifty-nine thousand, eight hundred thirty-nine".