2536321 has 4 divisors (see below), whose sum is σ = 2559700. Its totient is φ = 2512944.

The previous prime is 2536309. The next prime is 2536343. The reversal of 2536321 is 1236352.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1404225 + 1132096 = 1185^2 + 1064^2 .

It is a cyclic number.

It is not a de Polignac number, because 2536321 - 2¹³ = 2528129 is a prime.

It is a Duffinian number.

2536321 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2536292 and 2536301.

It is not an unprimeable number, because it can be changed into a prime (2536361) 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, 11526 + ... + 11743.

It is an arithmetic number, because the mean of its divisors is an integer number (639925).

2^2536321 is an apocalyptic number.

It is an amenable number.

2536321 is a deficient number, since it is larger than the sum of its proper divisors (23379).

2536321 is a wasteful number, since it uses less digits than its factorization.

2536321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23378.

The product of its digits is 1080, while the sum is 22.

The square root of 2536321 is about 1592.5831218495. The cubic root of 2536321 is about 136.3749923337.

The spelling of 2536321 in words is "two million, five hundred thirty-six thousand, three hundred twenty-one".