25325021211 has 16 divisors (see below), whose sum is σ = 38597260800. Its totient is φ = 14468908608.

The previous prime is 25325021203. The next prime is 25325021213. The reversal of 25325021211 is 11212052352.

It is not a de Polignac number, because 25325021211 - 2³ = 25325021203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25325021213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20895 + ... + 226023.

It is an arithmetic number, because the mean of its divisors is an integer number (2412328800).

Almost surely, 2^25325021211 is an apocalyptic number.

25325021211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

25325021211 is a deficient number, since it is larger than the sum of its proper divisors (13272239589).

25325021211 is a wasteful number, since it uses less digits than its factorization.

25325021211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211018.

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 25325021211 its reverse (11212052352), we get a palindrome (36537073563).

The spelling of 25325021211 in words is "twenty-five billion, three hundred twenty-five million, twenty-one thousand, two hundred eleven".