2001055 has 8 divisors (see below), whose sum is σ = 2744352. Its totient is φ = 1372128.

The previous prime is 2001049. The next prime is 2001067. The reversal of 2001055 is 5501002.

2001055 = 575² + 576² + ... + 580².

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 2001055 - 2⁷ = 2000927 is a prime.

It is a super-2 number, since 2×2001055² = 8008442226050, which contains 22 as substring.

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, 28552 + ... + 28621.

It is an arithmetic number, because the mean of its divisors is an integer number (343044).

2^2001055 is an apocalyptic number.

2001055 is a deficient number, since it is larger than the sum of its proper divisors (743297).

2001055 is an equidigital number, since it uses as much as digits as its factorization.

2001055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57185.

The product of its (nonzero) digits is 50, while the sum is 13.

The square root of 2001055 is about 1414.5865120239. The cubic root of 2001055 is about 126.0142547071.

Adding to 2001055 its reverse (5501002), we get a palindrome (7502057).

The spelling of 2001055 in words is "two million, one thousand, fifty-five".