55359805 has 4 divisors (see below), whose sum is σ = 66431772. Its totient is φ = 44287840.

The previous prime is 55359793. The next prime is 55359841. The reversal of 55359805 is 50895355.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7112889 + 48246916 = 2667^2 + 6946^2 .

It is a de Polignac number, because none of the positive numbers 2^k-55359805 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5535976 + ... + 5535985.

It is an arithmetic number, because the mean of its divisors is an integer number (16607943).

Almost surely, 2^55359805 is an apocalyptic number.

It is an amenable number.

55359805 is a deficient number, since it is larger than the sum of its proper divisors (11071967).

55359805 is a wasteful number, since it uses less digits than its factorization.

55359805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11071966.

The product of its (nonzero) digits is 135000, while the sum is 40.

The square root of 55359805 is about 7440.4169910026. The cubic root of 55359805 is about 381.1227298920.

The spelling of 55359805 in words is "fifty-five million, three hundred fifty-nine thousand, eight hundred five".