2536321321 has 4 divisors (see below), whose sum is σ = 2538242644. Its totient is φ = 2534400000.

The previous prime is 2536321313. The next prime is 2536321339. The reversal of 2536321321 is 1231236352.

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 1760977296 + 775344025 = 41964^2 + 27845^2 .

It is a cyclic number.

It is not a de Polignac number, because 2536321321 - 2³ = 2536321313 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2536321321.

It is not an unprimeable number, because it can be changed into a prime (2536321421) 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, 958680 + ... + 961321.

It is an arithmetic number, because the mean of its divisors is an integer number (634560661).

Almost surely, 2^2536321321 is an apocalyptic number.

It is an amenable number.

2536321321 is a deficient number, since it is larger than the sum of its proper divisors (1921323).

2536321321 is a wasteful number, since it uses less digits than its factorization.

2536321321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1921322.

The product of its digits is 6480, while the sum is 28.

The square root of 2536321321 is about 50361.9034687928. The cubic root of 2536321321 is about 1363.7499808701.

Adding to 2536321321 its reverse (1231236352), we get a palindrome (3767557673).

The spelling of 2536321321 in words is "two billion, five hundred thirty-six million, three hundred twenty-one thousand, three hundred twenty-one".