25275002305 has 32 divisors (see below), whose sum is σ = 35968647168. Its totient is φ = 16684401600.

The previous prime is 25275002279. The next prime is 25275002317. The reversal of 25275002305 is 50320057252.

It is not a de Polignac number, because 25275002305 - 2⁹ = 25275001793 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 146254 + ... + 268216.

It is an arithmetic number, because the mean of its divisors is an integer number (1124020224).

Almost surely, 2^25275002305 is an apocalyptic number.

It is an amenable number.

25275002305 is a deficient number, since it is larger than the sum of its proper divisors (10693644863).

25275002305 is a wasteful number, since it uses less digits than its factorization.

25275002305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122197.

The product of its (nonzero) digits is 21000, while the sum is 31.

Adding to 25275002305 its reverse (50320057252), we get a palindrome (75595059557).

The spelling of 25275002305 in words is "twenty-five billion, two hundred seventy-five million, two thousand, three hundred five".