24994991 has 4 divisors (see below), whose sum is σ = 28565712. Its totient is φ = 21424272.

The previous prime is 24994979. The next prime is 24995029. The reversal of 24994991 is 19949942.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 24994991 - 2¹⁸ = 24732847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24994961) 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, 1785350 + ... + 1785363.

It is an arithmetic number, because the mean of its divisors is an integer number (7141428).

Almost surely, 2^24994991 is an apocalyptic number.

24994991 is a deficient number, since it is larger than the sum of its proper divisors (3570721).

24994991 is an equidigital number, since it uses as much as digits as its factorization.

24994991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3570720.

The product of its digits is 209952, while the sum is 47.

The square root of 24994991 is about 4999.4990749074. The cubic root of 24994991 is about 292.3822439771.

The spelling of 24994991 in words is "twenty-four million, nine hundred ninety-four thousand, nine hundred ninety-one".