15225125205231 has 12 divisors (see below), whose sum is σ = 22047242605752. Its totient is φ = 10124516506896.

The previous prime is 15225125205223. The next prime is 15225125205263. The reversal of 15225125205231 is 13250252152251.

15225125205231 is a `hidden beast` number, since 1 + 5 + 2 + 2 + 5 + 125 + 2 + 0 + 523 + 1 = 666.

It is not a de Polignac number, because 15225125205231 - 2³ = 15225125205223 is a prime.

It is a super-2 number, since 2×15225125205231² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15225125205211) 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, 2130576501 + ... + 2130583646.

It is an arithmetic number, because the mean of its divisors is an integer number (1837270217146).

Almost surely, 2^{15225125205231} is an apocalyptic number.

15225125205231 is a deficient number, since it is larger than the sum of its proper divisors (6822117400521).

15225125205231 is a wasteful number, since it uses less digits than its factorization.

15225125205231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4261160550 (or 4261160547 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

Adding to 15225125205231 its reverse (13250252152251), we get a palindrome (28475377357482).

The spelling of 15225125205231 in words is "fifteen trillion, two hundred twenty-five billion, one hundred twenty-five million, two hundred five thousand, two hundred thirty-one".