25873221125 has 12 divisors (see below), whose sum is σ = 32292024492. Its totient is φ = 20697138200.

The previous prime is 25873221119. The next prime is 25873221133. The reversal of 25873221125 is 52112237852.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 827943076 + 25045278049 = 28774^2 + 158257^2 .

It is not a de Polignac number, because 25873221125 - 2⁸ = 25873220869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1791182 + ... + 1805568.

It is an arithmetic number, because the mean of its divisors is an integer number (2691002041).

Almost surely, 2^25873221125 is an apocalyptic number.

25873221125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25873221125 is a deficient number, since it is larger than the sum of its proper divisors (6418803367).

25873221125 is an frugal number, since it uses more digits than its factorization.

25873221125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28789 (or 14392 counting only the distinct ones).

The product of its digits is 67200, while the sum is 38.

Adding to 25873221125 its reverse (52112237852), we get a palindrome (77985458977).

The spelling of 25873221125 in words is "twenty-five billion, eight hundred seventy-three million, two hundred twenty-one thousand, one hundred twenty-five".