24997121 has 4 divisors (see below), whose sum is σ = 25057200. Its totient is φ = 24937044.

The previous prime is 24997111. The next prime is 24997127. The reversal of 24997121 is 12179942.

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 24997121 - 2⁶ = 24997057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (24997127) 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 3 ways as a sum of consecutive naturals, for example, 29411 + ... + 30248.

It is an arithmetic number, because the mean of its divisors is an integer number (6264300).

Almost surely, 2^24997121 is an apocalyptic number.

It is an amenable number.

24997121 is a deficient number, since it is larger than the sum of its proper divisors (60079).

24997121 is an equidigital number, since it uses as much as digits as its factorization.

24997121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60078.

The product of its digits is 9072, while the sum is 35.

The square root of 24997121 is about 4999.7120917109. The cubic root of 24997121 is about 292.3905490610.

The spelling of 24997121 in words is "twenty-four million, nine hundred ninety-seven thousand, one hundred twenty-one".