2512321 has 4 divisors (see below), whose sum is σ = 2871232. Its totient is φ = 2153412.

The previous prime is 2512303. The next prime is 2512331. The reversal of 2512321 is 1232152.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2512321 - 2⁹ = 2511809 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2512295 and 2512304.

It is not an unprimeable number, because it can be changed into a prime (2512331) 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, 179445 + ... + 179458.

It is an arithmetic number, because the mean of its divisors is an integer number (717808).

2^2512321 is an apocalyptic number.

It is an amenable number.

2512321 is a deficient number, since it is larger than the sum of its proper divisors (358911).

2512321 is an equidigital number, since it uses as much as digits as its factorization.

2512321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358910.

The product of its digits is 120, while the sum is 16.

The square root of 2512321 is about 1585.0302836224. The cubic root of 2512321 is about 135.9434778100.

Adding to 2512321 its reverse (1232152), we get a palindrome (3744473).

It can be divided in two parts, 25 and 12321, that multiplied together give a square (308025 = 555²).

The spelling of 2512321 in words is "two million, five hundred twelve thousand, three hundred twenty-one".