5855820 has 48 divisors (see below), whose sum is σ = 17363808. Its totient is φ = 1469440.

The previous prime is 5855797. The next prime is 5855833. The reversal of 5855820 is 285585.

It is an Ulam number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1851 + ... + 3890.

It is an arithmetic number, because the mean of its divisors is an integer number (361746).

Almost surely, 2^5855820 is an apocalyptic number.

It is an amenable number.

5855820 is an abundant number, since it is smaller than the sum of its proper divisors (11507988).

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

5855820 is a wasteful number, since it uses less digits than its factorization.

5855820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5770 (or 5768 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 33.

The square root of 5855820 is about 2419.8801623221. The cubic root of 5855820 is about 180.2447288431.

The spelling of 5855820 in words is "five million, eight hundred fifty-five thousand, eight hundred twenty".