24992991 has 6 divisors (see below), whose sum is σ = 36101000. Its totient is φ = 16661988.

The previous prime is 24992969. The next prime is 24993011. The reversal of 24992991 is 19929942.

It is not a de Polignac number, because 24992991 - 2¹¹ = 24990943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24992911) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1388491 + ... + 1388508.

Almost surely, 2^24992991 is an apocalyptic number.

24992991 is a deficient number, since it is larger than the sum of its proper divisors (11108009).

24992991 is a wasteful number, since it uses less digits than its factorization.

24992991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2777005 (or 2777002 counting only the distinct ones).

The product of its digits is 104976, while the sum is 45.

The square root of 24992991 is about 4999.2990508670. The cubic root of 24992991 is about 292.3744453468.

The spelling of 24992991 in words is "twenty-four million, nine hundred ninety-two thousand, nine hundred ninety-one".