25223125 has 10 divisors (see below), whose sum is σ = 31519598. Its totient is φ = 20178000.

The previous prime is 25223117. The next prime is 25223129. The reversal of 25223125 is 52132252.

It can be written as a sum of positive squares in 5 ways, for example, as 17422276 + 7800849 = 4174^2 + 2793^2 .

It is not a de Polignac number, because 25223125 - 2³ = 25223117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25223096 and 25223105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25223129) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 19554 + ... + 20803.

Almost surely, 2^25223125 is an apocalyptic number.

25223125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25223125 is a deficient number, since it is larger than the sum of its proper divisors (6296473).

25223125 is an frugal number, since it uses more digits than its factorization.

25223125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40377 (or 40362 counting only the distinct ones).

The product of its digits is 1200, while the sum is 22.

The square root of 25223125 is about 5022.2629361673. The cubic root of 25223125 is about 293.2690939160.

Adding to 25223125 its reverse (52132252), we get a palindrome (77355377).

The spelling of 25223125 in words is "twenty-five million, two hundred twenty-three thousand, one hundred twenty-five".