27165231425 has 12 divisors (see below), whose sum is σ = 33687062640. Its totient is φ = 21730781520.

The previous prime is 27165231337. The next prime is 27165231427. The reversal of 27165231425 is 52413256172.

It is not a de Polignac number, because 27165231425 - 2¹² = 27165227329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27165231427) 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, 552914 + ... + 600036.

It is an arithmetic number, because the mean of its divisors is an integer number (2807255220).

Almost surely, 2^27165231425 is an apocalyptic number.

27165231425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27165231425 is a deficient number, since it is larger than the sum of its proper divisors (6521831215).

27165231425 is a wasteful number, since it uses less digits than its factorization.

27165231425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70192 (or 70187 counting only the distinct ones).

The product of its digits is 100800, while the sum is 38.

Adding to 27165231425 its reverse (52413256172), we get a palindrome (79578487597).

The spelling of 27165231425 in words is "twenty-seven billion, one hundred sixty-five million, two hundred thirty-one thousand, four hundred twenty-five".