25535423320125 has 128 divisors (see below), whose sum is σ = 44113994496000. Its totient is φ = 13102147788800.

The previous prime is 25535423320093. The next prime is 25535423320207. The reversal of 25535423320125 is 52102332453552.

It is not a de Polignac number, because 25535423320125 - 2⁵ = 25535423320093 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3669406396 + ... + 3669413354.

It is an arithmetic number, because the mean of its divisors is an integer number (344640582000).

Almost surely, 2^{25535423320125} is an apocalyptic number.

25535423320125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25535423320125 is a deficient number, since it is larger than the sum of its proper divisors (18578571175875).

25535423320125 is a wasteful number, since it uses less digits than its factorization.

25535423320125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8168 (or 8158 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 42.

Adding to 25535423320125 its reverse (52102332453552), we get a palindrome (77637755773677).

The spelling of 25535423320125 in words is "twenty-five trillion, five hundred thirty-five billion, four hundred twenty-three million, three hundred twenty thousand, one hundred twenty-five".