12040025 has 12 divisors (see below), whose sum is σ = 14979324. Its totient is φ = 9600000.

The previous prime is 12040013. The next prime is 12040027. The reversal of 12040025 is 52004021.

It can be written as a sum of positive squares in 6 ways, for example, as 350464 + 11689561 = 592^2 + 3419^2 .

It is not a de Polignac number, because 12040025 - 2¹⁶ = 11974489 is a prime.

It is a hoax number, since the sum of its digits (14) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12039991 and 12040009.

It is not an unprimeable number, because it can be changed into a prime (12040027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9425 + ... + 10625.

It is an arithmetic number, because the mean of its divisors is an integer number (1248277).

Almost surely, 2^12040025 is an apocalyptic number.

It is an amenable number.

12040025 is a deficient number, since it is larger than the sum of its proper divisors (2939299).

12040025 is a wasteful number, since it uses less digits than its factorization.

12040025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1612 (or 1607 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 12040025 is about 3469.8739170177. The cubic root of 12040025 is about 229.1971059659.

Adding to 12040025 its reverse (52004021), we get a palindrome (64044046).

The spelling of 12040025 in words is "twelve million, forty thousand, twenty-five".