12525540441 has 16 divisors (see below), whose sum is σ = 16793145600. Its totient is φ = 8304242688.

The previous prime is 12525540439. The next prime is 12525540493. The reversal of 12525540441 is 14404552521.

It is a happy number.

It is not a de Polignac number, because 12525540441 - 2¹ = 12525540439 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12525540431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 540015 + ... + 562731.

It is an arithmetic number, because the mean of its divisors is an integer number (1049571600).

Almost surely, 2^12525540441 is an apocalyptic number.

It is an amenable number.

12525540441 is a deficient number, since it is larger than the sum of its proper divisors (4267605159).

12525540441 is a wasteful number, since it uses less digits than its factorization.

12525540441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23728.

The product of its (nonzero) digits is 32000, while the sum is 33.

The spelling of 12525540441 in words is "twelve billion, five hundred twenty-five million, five hundred forty thousand, four hundred forty-one".