25225004145231 has 24 divisors (see below), whose sum is σ = 39782669112576. Its totient is φ = 15274736018640.

The previous prime is 25225004145169. The next prime is 25225004145239. The reversal of 25225004145231 is 13254140052252.

25225004145231 is a `hidden beast` number, since 2 + 5 + 2 + 2 + 5 + 0 + 0 + 414 + 5 + 231 = 666.

It is not a de Polignac number, because 25225004145231 - 2⁶ = 25225004145167 is a prime.

It is a super-2 number, since 2×25225004145231² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25225004145239) 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, 109428295 + ... + 109658568.

It is an arithmetic number, because the mean of its divisors is an integer number (1657611213024).

Almost surely, 2^{25225004145231} is an apocalyptic number.

25225004145231 is a deficient number, since it is larger than the sum of its proper divisors (14557664967345).

25225004145231 is a wasteful number, since it uses less digits than its factorization.

25225004145231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219088043 (or 219088040 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

Adding to 25225004145231 its reverse (13254140052252), we get a palindrome (38479144197483).

The spelling of 25225004145231 in words is "twenty-five trillion, two hundred twenty-five billion, four million, one hundred forty-five thousand, two hundred thirty-one".