12575757 has 4 divisors (see below), whose sum is σ = 16767680. Its totient is φ = 8383836.

The previous prime is 12575753. The next prime is 12575803. The reversal of 12575757 is 75757521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12575757 - 2² = 12575753 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 (12575753) 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, 2095957 + ... + 2095962.

It is an arithmetic number, because the mean of its divisors is an integer number (4191920).

Almost surely, 2^12575757 is an apocalyptic number.

It is an amenable number.

12575757 is a deficient number, since it is larger than the sum of its proper divisors (4191923).

12575757 is an equidigital number, since it uses as much as digits as its factorization.

12575757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4191922.

The product of its digits is 85750, while the sum is 39.

The square root of 12575757 is about 3546.2313799300. The cubic root of 12575757 is about 232.5473414986.

The spelling of 12575757 in words is "twelve million, five hundred seventy-five thousand, seven hundred fifty-seven".