2055831 has 8 divisors (see below), whose sum is σ = 2815344. Its totient is φ = 1333440.

The previous prime is 2055829. The next prime is 2055847. The reversal of 2055831 is 1385502.

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

It is not a de Polignac number, because 2055831 - 2¹ = 2055829 is a prime.

It is a super-2 number, since 2×2055831² = 8452882201122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2055821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9150 + ... + 9371.

It is an arithmetic number, because the mean of its divisors is an integer number (351918).

2^2055831 is an apocalyptic number.

2055831 is a deficient number, since it is larger than the sum of its proper divisors (759513).

2055831 is a wasteful number, since it uses less digits than its factorization.

2055831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18561.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 2055831 is about 1433.8169339215. The cubic root of 2055831 is about 127.1537394573.

The spelling of 2055831 in words is "two million, fifty-five thousand, eight hundred thirty-one".