2053591 has 4 divisors (see below), whose sum is σ = 2092392. Its totient is φ = 2014792.

The previous prime is 2053573. The next prime is 2053603. The reversal of 2053591 is 1953502.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2053591 - 2¹⁷ = 1922519 is a prime.

It is a Duffinian number.

2053591 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2053091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19321 + ... + 19426.

It is an arithmetic number, because the mean of its divisors is an integer number (523098).

2^2053591 is an apocalyptic number.

2053591 is a deficient number, since it is larger than the sum of its proper divisors (38801).

2053591 is an equidigital number, since it uses as much as digits as its factorization.

2053591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38800.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 2053591 is about 1433.0355892301. The cubic root of 2053591 is about 127.1075411258.

The spelling of 2053591 in words is "two million, fifty-three thousand, five hundred ninety-one".