24145225 has 12 divisors (see below), whose sum is σ = 32243596. Its totient is φ = 17830080.

The previous prime is 24145223. The next prime is 24145229. The reversal of 24145225 is 52254142.

It can be written as a sum of positive squares in 6 ways, for example, as 9560464 + 14584761 = 3092^2 + 3819^2 .

It is not a de Polignac number, because 24145225 - 2¹ = 24145223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 24145225.

It is not an unprimeable number, because it can be changed into a prime (24145223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36822 + ... + 37471.

Almost surely, 2^24145225 is an apocalyptic number.

24145225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

24145225 is a deficient number, since it is larger than the sum of its proper divisors (8098371).

24145225 is a wasteful number, since it uses less digits than its factorization.

24145225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74316 (or 74311 counting only the distinct ones).

The product of its digits is 3200, while the sum is 25.

The square root of 24145225 is about 4913.7790955638. The cubic root of 24145225 is about 289.0305519598.

Adding to 24145225 its reverse (52254142), we get a palindrome (76399367).

The spelling of 24145225 in words is "twenty-four million, one hundred forty-five thousand, two hundred twenty-five".