2536591 has 4 divisors (see below), whose sum is σ = 2539792. Its totient is φ = 2533392.

The previous prime is 2536579. The next prime is 2536603. The reversal of 2536591 is 1956352.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (2536579) and next prime (2536603).

It is a cyclic number.

It is not a de Polignac number, because 2536591 - 2⁵ = 2536559 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2536561) 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, 571 + ... + 2323.

It is an arithmetic number, because the mean of its divisors is an integer number (634948).

2^2536591 is an apocalyptic number.

2536591 is a deficient number, since it is larger than the sum of its proper divisors (3201).

2536591 is a wasteful number, since it uses less digits than its factorization.

2536591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3200.

The product of its digits is 8100, while the sum is 31.

The square root of 2536591 is about 1592.6678875396. The cubic root of 2536591 is about 136.3798313560.

The spelling of 2536591 in words is "two million, five hundred thirty-six thousand, five hundred ninety-one".