12575565601 has 4 divisors (see below), whose sum is σ = 13315304772. Its totient is φ = 11835826432.

The previous prime is 12575565599. The next prime is 12575565623. The reversal of 12575565601 is 10656557521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6275016225 + 6300549376 = 79215^2 + 79376^2 .

It is a cyclic number.

It is not a de Polignac number, because 12575565601 - 2¹ = 12575565599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12575565631) 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, 369869560 + ... + 369869593.

It is an arithmetic number, because the mean of its divisors is an integer number (3328826193).

Almost surely, 2^12575565601 is an apocalyptic number.

It is an amenable number.

12575565601 is a deficient number, since it is larger than the sum of its proper divisors (739739171).

12575565601 is an equidigital number, since it uses as much as digits as its factorization.

12575565601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739739170.

The product of its (nonzero) digits is 315000, while the sum is 43.

The spelling of 12575565601 in words is "twelve billion, five hundred seventy-five million, five hundred sixty-five thousand, six hundred one".