25245224 has 32 divisors (see below), whose sum is σ = 50080800. Its totient is φ = 11897280.

The previous prime is 25245139. The next prime is 25245229. The reversal of 25245224 is 42254252.

It is a junction number, because it is equal to n+sod(n) for n = 25245193 and 25245202.

It is not an unprimeable number, because it can be changed into a prime (25245229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46394 + ... + 46934.

It is an arithmetic number, because the mean of its divisors is an integer number (1565025).

Almost surely, 2^25245224 is an apocalyptic number.

It is an amenable number.

25245224 is a deficient number, since it is larger than the sum of its proper divisors (24835576).

25245224 is a wasteful number, since it uses less digits than its factorization.

25245224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873 (or 869 counting only the distinct ones).

The product of its digits is 6400, while the sum is 26.

The square root of 25245224 is about 5024.4625583240. The cubic root of 25245224 is about 293.3547172198.

Adding to 25245224 its reverse (42254252), we get a palindrome (67499476).

Subtracting 25245224 from its reverse (42254252), we obtain a triangular number (17009028 = T₅₈₃₂).

The spelling of 25245224 in words is "twenty-five million, two hundred forty-five thousand, two hundred twenty-four".