2055858 has 32 divisors (see below), whose sum is σ = 4853760. Its totient is φ = 568080.

The previous prime is 2055853. The next prime is 2055917. The reversal of 2055858 is 8585502.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2055853) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 513 + ... + 2091.

It is an arithmetic number, because the mean of its divisors is an integer number (151680).

2^2055858 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2055858, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2426880).

2055858 is an abundant number, since it is smaller than the sum of its proper divisors (2797902).

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

2055858 is a wasteful number, since it uses less digits than its factorization.

2055858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1622.

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

The square root of 2055858 is about 1433.8263493185. The cubic root of 2055858 is about 127.1542961074.

The spelling of 2055858 in words is "two million, fifty-five thousand, eight hundred fifty-eight".