25120403311 has 16 divisors (see below), whose sum is σ = 26751142080. Its totient is φ = 23507066880.

The previous prime is 25120403299. The next prime is 25120403393. The reversal of 25120403311 is 11330402152.

It is a happy number.

It is not a de Polignac number, because 25120403311 - 2⁵ = 25120403279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25120403111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2156575 + ... + 2168191.

It is an arithmetic number, because the mean of its divisors is an integer number (1671946380).

Almost surely, 2^25120403311 is an apocalyptic number.

25120403311 is a deficient number, since it is larger than the sum of its proper divisors (1630738769).

25120403311 is a wasteful number, since it uses less digits than its factorization.

25120403311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12354.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 25120403311 its reverse (11330402152), we get a palindrome (36450805463).

The spelling of 25120403311 in words is "twenty-five billion, one hundred twenty million, four hundred three thousand, three hundred eleven".