24961281 has 8 divisors (see below), whose sum is σ = 33593184. Its totient is φ = 16485120.

The previous prime is 24961271. The next prime is 24961283. The reversal of 24961281 is 18216942.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 24961281 - 2¹⁴ = 24944897 is a prime.

It is a super-2 number, since 2×24961281² = 1246131098321922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (24961283) 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 7 ways as a sum of consecutive naturals, for example, 38560 + ... + 39201.

It is an arithmetic number, because the mean of its divisors is an integer number (4199148).

Almost surely, 2^24961281 is an apocalyptic number.

It is an amenable number.

24961281 is a deficient number, since it is larger than the sum of its proper divisors (8631903).

24961281 is a wasteful number, since it uses less digits than its factorization.

24961281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77871.

The product of its digits is 6912, while the sum is 33.

The square root of 24961281 is about 4996.1265996770. The cubic root of 24961281 is about 292.2507424336.

The spelling of 24961281 in words is "twenty-four million, nine hundred sixty-one thousand, two hundred eighty-one".