25435225 has 12 divisors (see below), whose sum is σ = 32212224. Its totient is φ = 19914320.

The previous prime is 25435183. The next prime is 25435229. The reversal of 25435225 is 52253452.

It is not a de Polignac number, because 25435225 - 2¹⁹ = 24910937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25435193 and 25435202.

It is not an unprimeable number, because it can be changed into a prime (25435229) 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, 9649 + ... + 11998.

It is an arithmetic number, because the mean of its divisors is an integer number (2684352).

Almost surely, 2^25435225 is an apocalyptic number.

25435225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25435225 is a deficient number, since it is larger than the sum of its proper divisors (6776999).

25435225 is a wasteful number, since it uses less digits than its factorization.

25435225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21704 (or 21699 counting only the distinct ones).

The product of its digits is 12000, while the sum is 28.

The square root of 25435225 is about 5043.3347102884. The cubic root of 25435225 is about 294.0888288823.

Adding to 25435225 its reverse (52253452), we get a palindrome (77688677).

The spelling of 25435225 in words is "twenty-five million, four hundred thirty-five thousand, two hundred twenty-five".