25302005235 has 40 divisors (see below), whose sum is σ = 48845134800. Its totient is φ = 12456369216.

The previous prime is 25302005221. The next prime is 25302005237. The reversal of 25302005235 is 53250020352.

It is not a de Polignac number, because 25302005235 - 2⁴ = 25302005219 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 25302005199 and 25302005208.

It is not an unprimeable number, because it can be changed into a prime (25302005237) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2397585 + ... + 2408114.

It is an arithmetic number, because the mean of its divisors is an integer number (1221128370).

Almost surely, 2^25302005235 is an apocalyptic number.

25302005235 is a deficient number, since it is larger than the sum of its proper divisors (23543129565).

25302005235 is a wasteful number, since it uses less digits than its factorization.

25302005235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4805729 (or 4805720 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

Adding to 25302005235 its reverse (53250020352), we get a palindrome (78552025587).

The spelling of 25302005235 in words is "twenty-five billion, three hundred two million, five thousand, two hundred thirty-five".