2591001 has 16 divisors (see below), whose sum is σ = 4387200. Its totient is φ = 1480464.

The previous prime is 2590997. The next prime is 2591023. The reversal of 2591001 is 1001952.

It is not a de Polignac number, because 2591001 - 2² = 2590997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2591041) 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, 6666 + ... + 7043.

It is an arithmetic number, because the mean of its divisors is an integer number (274200).

2^2591001 is an apocalyptic number.

2591001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2591001 is a deficient number, since it is larger than the sum of its proper divisors (1796199).

2591001 is a wasteful number, since it uses less digits than its factorization.

2591001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13725 (or 13719 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 2591001 is about 1609.6586594679. The cubic root of 2591001 is about 137.3480591608.

Adding to 2591001 its reverse (1001952), we get a palindrome (3592953).

The spelling of 2591001 in words is "two million, five hundred ninety-one thousand, one".