2536531 has 4 divisors (see below), whose sum is σ = 2571352. Its totient is φ = 2501712.

The previous prime is 2536517. The next prime is 2536549. The reversal of 2536531 is 1356352.

It is a happy number.

2536531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2536531 - 2⁷ = 2536403 is a prime.

It is a super-2 number, since 2×2536531² = 12867979027922, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2¹⁹ + 5 + 3³ + 6² + 5⁹ + 3¹⁰ + 1 .

2536531 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2536496 and 2536505.

It is not an unprimeable number, because it can be changed into a prime (2536561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17301 + ... + 17446.

It is an arithmetic number, because the mean of its divisors is an integer number (642838).

2^2536531 is an apocalyptic number.

2536531 is a deficient number, since it is larger than the sum of its proper divisors (34821).

2536531 is an equidigital number, since it uses as much as digits as its factorization.

2536531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34820.

The product of its digits is 2700, while the sum is 25.

The square root of 2536531 is about 1592.6490511095. The cubic root of 2536531 is about 136.3787560474.

The spelling of 2536531 in words is "two million, five hundred thirty-six thousand, five hundred thirty-one".