25142052231 has 12 divisors (see below), whose sum is σ = 36321709008. Its totient is φ = 16758870624.

The previous prime is 25142052223. The next prime is 25142052239. The reversal of 25142052231 is 13225024152.

25142052231 is a `hidden beast` number, since 2 + 5 + 1 + 420 + 5 + 2 + 231 = 666.

It is an interprime number because it is at equal distance from previous prime (25142052223) and next prime (25142052239).

It is not a de Polignac number, because 25142052231 - 2³ = 25142052223 is a prime.

It is a super-2 number, since 2×25142052231² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25142052195 and 25142052204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25142052239) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 143310 + ... + 266123.

It is an arithmetic number, because the mean of its divisors is an integer number (3026809084).

Almost surely, 2^25142052231 is an apocalyptic number.

25142052231 is a deficient number, since it is larger than the sum of its proper divisors (11179656777).

25142052231 is a wasteful number, since it uses less digits than its factorization.

25142052231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416262 (or 416259 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 25142052231 its reverse (13225024152), we get a palindrome (38367076383).

The spelling of 25142052231 in words is "twenty-five billion, one hundred forty-two million, fifty-two thousand, two hundred thirty-one".