24961591 has 2 divisors, whose sum is σ = 24961592. Its totient is φ = 24961590.

The previous prime is 24961589. The next prime is 24961613. The reversal of 24961591 is 19516942.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 24961591 - 2¹ = 24961589 is a prime.

Together with 24961589, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 24961591.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24961501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12480795 + 12480796.

It is an arithmetic number, because the mean of its divisors is an integer number (12480796).

Almost surely, 2^24961591 is an apocalyptic number.

24961591 is a deficient number, since it is larger than the sum of its proper divisors (1).

24961591 is an equidigital number, since it uses as much as digits as its factorization.

24961591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 37.

The square root of 24961591 is about 4996.1576236144. The cubic root of 24961591 is about 292.2519522720.

It can be divided in two parts, 24961 and 591, that added together give a palindrome (25552).

The spelling of 24961591 in words is "twenty-four million, nine hundred sixty-one thousand, five hundred ninety-one".