12525355352521 has 16 divisors (see below), whose sum is σ = 13671574709760. Its totient is φ = 11380396209280.

The previous prime is 12525355352459. The next prime is 12525355352527.

12525355352521 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 12525355352521 - 2³³ = 12516765417929 is a prime.

It is a super-3 number, since 3×12525355352521³ (a number of 40 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (12525355352527) 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, 155228175 + ... + 155308843.

It is an arithmetic number, because the mean of its divisors is an integer number (854473419360).

Almost surely, 2^{12525355352521} is an apocalyptic number.

12525355352521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12525355352521 is a deficient number, since it is larger than the sum of its proper divisors (1146219357239).

12525355352521 is a wasteful number, since it uses less digits than its factorization.

12525355352521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88304.

The product of its digits is 2250000, while the sum is 46.

The spelling of 12525355352521 in words is "twelve trillion, five hundred twenty-five billion, three hundred fifty-five million, three hundred fifty-two thousand, five hundred twenty-one".