2524021 has 4 divisors (see below), whose sum is σ = 2527200. Its totient is φ = 2520844.

The previous prime is 2524009. The next prime is 2524031. The reversal of 2524021 is 1204252.

2524021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2524021 - 2⁷ = 2523893 is a prime.

It is a Duffinian number.

2524021 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2523986 and 2524004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2524031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 750 + ... + 2368.

It is an arithmetic number, because the mean of its divisors is an integer number (631800).

2^2524021 is an apocalyptic number.

It is an amenable number.

2524021 is a deficient number, since it is larger than the sum of its proper divisors (3179).

2524021 is a wasteful number, since it uses less digits than its factorization.

2524021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3178.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 2524021 is about 1588.7167777801. The cubic root of 2524021 is about 136.1541828362.

Adding to 2524021 its reverse (1204252), we get a palindrome (3728273).

The spelling of 2524021 in words is "two million, five hundred twenty-four thousand, twenty-one".