25414135231 has 4 divisors (see below), whose sum is σ = 25660874512. Its totient is φ = 25167395952.

The previous prime is 25414135213. The next prime is 25414135267. The reversal of 25414135231 is 13253141452.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25414135231 - 2⁵ = 25414135199 is a prime.

It is a super-2 number, since 2×25414135231² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25414135193 and 25414135202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25414135631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123369486 + ... + 123369691.

It is an arithmetic number, because the mean of its divisors is an integer number (6415218628).

Almost surely, 2^25414135231 is an apocalyptic number.

25414135231 is a deficient number, since it is larger than the sum of its proper divisors (246739281).

25414135231 is a wasteful number, since it uses less digits than its factorization.

25414135231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246739280.

The product of its digits is 14400, while the sum is 31.

Adding to 25414135231 its reverse (13253141452), we get a palindrome (38667276683).

The spelling of 25414135231 in words is "twenty-five billion, four hundred fourteen million, one hundred thirty-five thousand, two hundred thirty-one".