24880145 has 4 divisors (see below), whose sum is σ = 29856180. Its totient is φ = 19904112.

The previous prime is 24880111. The next prime is 24880147. The reversal of 24880145 is 54108842.

It is a happy number.

It is a Cunningham number, because it is equal to 4988²+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54108842 = 2 ⋅27054421.

It can be written as a sum of positive squares in 2 ways, for example, as 8952064 + 15928081 = 2992^2 + 3991^2 .

It is a cyclic number.

It is not a de Polignac number, because 24880145 - 2²⁴ = 8102929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (24880147) 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, 2488010 + ... + 2488019.

It is an arithmetic number, because the mean of its divisors is an integer number (7464045).

Almost surely, 2^24880145 is an apocalyptic number.

It is an amenable number.

24880145 is a deficient number, since it is larger than the sum of its proper divisors (4976035).

24880145 is an equidigital number, since it uses as much as digits as its factorization.

24880145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4976034.

The product of its (nonzero) digits is 10240, while the sum is 32.

The square root of 24880145 is about 4988.0001002406. Note that the first 3 decimals coincide. The cubic root of 24880145 is about 291.9337475573.

Adding to 24880145 its reverse (54108842), we get a palindrome (78988987).

The spelling of 24880145 in words is "twenty-four million, eight hundred eighty thousand, one hundred forty-five".