2521423 has 8 divisors (see below), whose sum is σ = 2708640. Its totient is φ = 2338560.

The previous prime is 2521417. The next prime is 2521429. The reversal of 2521423 is 3241252.

It is an interprime number because it is at equal distance from previous prime (2521417) and next prime (2521429).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2521423 - 2¹⁷ = 2390351 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 2521423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2521429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163 + ... + 2251.

It is an arithmetic number, because the mean of its divisors is an integer number (338580).

2^2521423 is an apocalyptic number.

2521423 is a deficient number, since it is larger than the sum of its proper divisors (187217).

2521423 is a wasteful number, since it uses less digits than its factorization.

2521423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2177.

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

The square root of 2521423 is about 1587.8989262544. The cubic root of 2521423 is about 136.1074518460.

Adding to 2521423 its reverse (3241252), we get a palindrome (5762675).

The spelling of 2521423 in words is "two million, five hundred twenty-one thousand, four hundred twenty-three".