12771825 has 48 divisors (see below), whose sum is σ = 23409216. Its totient is φ = 6092800.

The previous prime is 12771821. The next prime is 12771839. The reversal of 12771825 is 52817721.

12771825 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12771825 - 2² = 12771821 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (12771821) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 93157 + ... + 93293.

It is an arithmetic number, because the mean of its divisors is an integer number (487692).

Almost surely, 2^12771825 is an apocalyptic number.

12771825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12771825 is a deficient number, since it is larger than the sum of its proper divisors (10637391).

12771825 is a wasteful number, since it uses less digits than its factorization.

12771825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274 (or 269 counting only the distinct ones).

The product of its digits is 7840, while the sum is 33.

The square root of 12771825 is about 3573.7690188371. The cubic root of 12771825 is about 233.7496592215.

The spelling of 12771825 in words is "twelve million, seven hundred seventy-one thousand, eight hundred twenty-five".