25525305025 has 12 divisors (see below), whose sum is σ = 34528776624. Its totient is φ = 18563858000.

The previous prime is 25525305011. The next prime is 25525305053. The reversal of 25525305025 is 52050352552.

It is not a de Polignac number, because 25525305025 - 2⁹ = 25525304513 is a prime.

It is a Duffinian number.

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, 46409371 + ... + 46409920.

It is an arithmetic number, because the mean of its divisors is an integer number (2877398052).

Almost surely, 2^25525305025 is an apocalyptic number.

25525305025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25525305025 is a deficient number, since it is larger than the sum of its proper divisors (9003471599).

25525305025 is a wasteful number, since it uses less digits than its factorization.

25525305025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92819312 (or 92819307 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 34.

Adding to 25525305025 its reverse (52050352552), we get a palindrome (77575657577).

The spelling of 25525305025 in words is "twenty-five billion, five hundred twenty-five million, three hundred five thousand, twenty-five".