5815855 has 8 divisors (see below), whose sum is σ = 6999552. Its totient is φ = 4639008.

The previous prime is 5815847. The next prime is 5815861. The reversal of 5815855 is 5585185.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5815855 - 2³ = 5815847 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 7 ways as a sum of consecutive naturals, for example, 397 + ... + 3433.

It is an arithmetic number, because the mean of its divisors is an integer number (874944).

Almost surely, 2^5815855 is an apocalyptic number.

5815855 is a deficient number, since it is larger than the sum of its proper divisors (1183697).

5815855 is a wasteful number, since it uses less digits than its factorization.

5815855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3425.

The product of its digits is 40000, while the sum is 37.

The square root of 5815855 is about 2411.6083844605. The cubic root of 5815855 is about 179.8337456659.

It can be divided in two parts, 5815 and 855, that added together give a triangular number (6670 = T₁₁₅).

The spelling of 5815855 in words is "five million, eight hundred fifteen thousand, eight hundred fifty-five".