25623145135 has 8 divisors (see below), whose sum is σ = 35140313376. Its totient is φ = 17570156640.

The previous prime is 25623145109. The next prime is 25623145151. The reversal of 25623145135 is 53154132652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25623145135 - 2⁵ = 25623145103 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25623145094 and 25623145103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 366044896 + ... + 366044965.

It is an arithmetic number, because the mean of its divisors is an integer number (4392539172).

Almost surely, 2^25623145135 is an apocalyptic number.

25623145135 is a deficient number, since it is larger than the sum of its proper divisors (9517168241).

25623145135 is an equidigital number, since it uses as much as digits as its factorization.

25623145135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732089873.

The product of its digits is 108000, while the sum is 37.

Adding to 25623145135 its reverse (53154132652), we get a palindrome (78777277787).

The spelling of 25623145135 in words is "twenty-five billion, six hundred twenty-three million, one hundred forty-five thousand, one hundred thirty-five".