25223715 has 24 divisors (see below), whose sum is σ = 47696688. Its totient is φ = 12229440.

The previous prime is 25223713. The next prime is 25223741. The reversal of 25223715 is 51732252.

It is not a de Polignac number, because 25223715 - 2¹ = 25223713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25223711) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24984 + ... + 25973.

It is an arithmetic number, because the mean of its divisors is an integer number (1987362).

Almost surely, 2^25223715 is an apocalyptic number.

25223715 is a deficient number, since it is larger than the sum of its proper divisors (22472973).

25223715 is a wasteful number, since it uses less digits than its factorization.

25223715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50979 (or 50976 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 25223715 is about 5022.3216742857. The cubic root of 25223715 is about 293.2713805401.

Adding to 25223715 its reverse (51732252), we get a palindrome (76955967).

It can be divided in two parts, 252237 and 15, that added together give a palindrome (252252).

The spelling of 25223715 in words is "twenty-five million, two hundred twenty-three thousand, seven hundred fifteen".