12256725527 has 4 divisors (see below), whose sum is σ = 12429355536. Its totient is φ = 12084095520.

The previous prime is 12256725517. The next prime is 12256725539. The reversal of 12256725527 is 72552765221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72552765221 = 19273 ⋅3764477.

It is a cyclic number.

It is not a de Polignac number, because 12256725527 - 2²⁸ = 11988290071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12256725517) 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, 86314898 + ... + 86315039.

It is an arithmetic number, because the mean of its divisors is an integer number (3107338884).

Almost surely, 2^12256725527 is an apocalyptic number.

12256725527 is a deficient number, since it is larger than the sum of its proper divisors (172630009).

12256725527 is an equidigital number, since it uses as much as digits as its factorization.

12256725527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172630008.

The product of its digits is 588000, while the sum is 44.

The spelling of 12256725527 in words is "twelve billion, two hundred fifty-six million, seven hundred twenty-five thousand, five hundred twenty-seven".