12025777 has 4 divisors (see below), whose sum is σ = 12350836. Its totient is φ = 11700720.

The previous prime is 12025733. The next prime is 12025781. The reversal of 12025777 is 77752021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 77752021 = 137 ⋅567533.

It can be written as a sum of positive squares in 2 ways, for example, as 11621281 + 404496 = 3409^2 + 636^2 .

It is a cyclic number.

It is not a de Polignac number, because 12025777 - 2⁷ = 12025649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12029777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162474 + ... + 162547.

It is an arithmetic number, because the mean of its divisors is an integer number (3087709).

Almost surely, 2^12025777 is an apocalyptic number.

It is an amenable number.

12025777 is a deficient number, since it is larger than the sum of its proper divisors (325059).

12025777 is an equidigital number, since it uses as much as digits as its factorization.

12025777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325058.

The product of its (nonzero) digits is 6860, while the sum is 31.

The square root of 12025777 is about 3467.8202087190. The cubic root of 12025777 is about 229.1066607116.

Adding to 12025777 its reverse (77752021), we get a palindrome (89777798).

The spelling of 12025777 in words is "twelve million, twenty-five thousand, seven hundred seventy-seven".