25323134013 has 24 divisors (see below), whose sum is σ = 38561608800. Its totient is φ = 15969217824.

The previous prime is 25323133973. The next prime is 25323134041. The reversal of 25323134013 is 31043132352.

25323134013 is a `hidden beast` number, since 25 + 3 + 231 + 3 + 401 + 3 = 666.

It is not a de Polignac number, because 25323134013 - 2⁸ = 25323133757 is a prime.

It is a super-2 number, since 2×25323134013² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25323134063) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 331 + ... + 225047.

It is an arithmetic number, because the mean of its divisors is an integer number (1606733700).

Almost surely, 2^25323134013 is an apocalyptic number.

It is an amenable number.

25323134013 is a deficient number, since it is larger than the sum of its proper divisors (13238474787).

25323134013 is a wasteful number, since it uses less digits than its factorization.

25323134013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225401 (or 225398 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

Adding to 25323134013 its reverse (31043132352), we get a palindrome (56366266365).

The spelling of 25323134013 in words is "twenty-five billion, three hundred twenty-three million, one hundred thirty-four thousand, thirteen".