25045331344525 has 12 divisors (see below), whose sum is σ = 31076029812352. Its totient is φ = 20023478659440.

The previous prime is 25045331344403. The next prime is 25045331344577. The reversal of 25045331344525 is 52544313354052.

It is a de Polignac number, because none of the positive numbers 2^k-25045331344525 is a prime.

It is a Duffinian number.

It is a congruent 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, 319620447 + ... + 319698796.

Almost surely, 2^{25045331344525} is an apocalyptic number.

25045331344525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25045331344525 is a deficient number, since it is larger than the sum of its proper divisors (6030698467827).

25045331344525 is a wasteful number, since it uses less digits than its factorization.

25045331344525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639320820 (or 639320815 counting only the distinct ones).

The product of its (nonzero) digits is 4320000, while the sum is 46.

Adding to 25045331344525 its reverse (52544313354052), we get a palindrome (77589644698577).

The spelling of 25045331344525 in words is "twenty-five trillion, forty-five billion, three hundred thirty-one million, three hundred forty-four thousand, five hundred twenty-five".