2524321 has 4 divisors (see below), whose sum is σ = 2657200. Its totient is φ = 2391444.

The previous prime is 2524309. The next prime is 2524339. The reversal of 2524321 is 1234252.

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 2524321 - 2⁵ = 2524289 is a prime.

It is a super-2 number, since 2×2524321² = 12744393022082, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 132859 = 2524321 / (2 + 5 + 2 + 4 + 3 + 2 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2524351) 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, 66411 + ... + 66448.

It is an arithmetic number, because the mean of its divisors is an integer number (664300).

2^2524321 is an apocalyptic number.

It is an amenable number.

2524321 is a deficient number, since it is larger than the sum of its proper divisors (132879).

2524321 is a wasteful number, since it uses less digits than its factorization.

2524321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132878.

The product of its digits is 480, while the sum is 19.

The square root of 2524321 is about 1588.8111907964. The cubic root of 2524321 is about 136.1595769589.

Adding to 2524321 its reverse (1234252), we get a palindrome (3758573).

The spelling of 2524321 in words is "two million, five hundred twenty-four thousand, three hundred twenty-one".