25210267025 has 12 divisors (see below), whose sum is σ = 31263384432. Its totient is φ = 20166501840.

The previous prime is 25210267013. The next prime is 25210267039. The reversal of 25210267025 is 52076201252.

It is not a de Polignac number, because 25210267025 - 2⁴ = 25210267009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25210266982 and 25210267000.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 316934 + ... + 388416.

It is an arithmetic number, because the mean of its divisors is an integer number (2605282036).

Almost surely, 2^25210267025 is an apocalyptic number.

25210267025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25210267025 is a deficient number, since it is larger than the sum of its proper divisors (6053117407).

25210267025 is a wasteful number, since it uses less digits than its factorization.

25210267025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85600 (or 85595 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

Adding to 25210267025 its reverse (52076201252), we get a palindrome (77286468277).

The spelling of 25210267025 in words is "twenty-five billion, two hundred ten million, two hundred sixty-seven thousand, twenty-five".