12520525057 has 8 divisors (see below), whose sum is σ = 13203172800. Its totient is φ = 11840244624.

The previous prime is 12520524971. The next prime is 12520525099. The reversal of 12520525057 is 75052502521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12520525057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12520528057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 580957 + ... + 602122.

It is an arithmetic number, because the mean of its divisors is an integer number (1650396600).

Almost surely, 2^12520525057 is an apocalyptic number.

It is an amenable number.

12520525057 is a deficient number, since it is larger than the sum of its proper divisors (682647743).

12520525057 is a wasteful number, since it uses less digits than its factorization.

12520525057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183655.

The product of its (nonzero) digits is 35000, while the sum is 34.

The spelling of 12520525057 in words is "twelve billion, five hundred twenty million, five hundred twenty-five thousand, fifty-seven".