25105023125 has 80 divisors (see below), whose sum is σ = 39160864512. Its totient is φ = 15664320000.

The previous prime is 25105023101. The next prime is 25105023127. The reversal of 25105023125 is 52132050152.

It is not a de Polignac number, because 25105023125 - 2¹⁰ = 25105022101 is a prime.

It is a super-2 number, since 2×25105023125² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25105023094 and 25105023103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25105023127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 4035017 + ... + 4041233.

Almost surely, 2^25105023125 is an apocalyptic number.

25105023125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25105023125 is a deficient number, since it is larger than the sum of its proper divisors (14055841387).

25105023125 is an equidigital number, since it uses as much as digits as its factorization.

25105023125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6328 (or 6313 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

Adding to 25105023125 its reverse (52132050152), we get a palindrome (77237073277).

The spelling of 25105023125 in words is "twenty-five billion, one hundred five million, twenty-three thousand, one hundred twenty-five".