12025515 has 8 divisors (see below), whose sum is σ = 19240848. Its totient is φ = 6413600.

The previous prime is 12025513. The next prime is 12025529. The reversal of 12025515 is 51552021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12025515 - 2¹ = 12025513 is a prime.

It is a super-2 number, since 2×12025515² = 289226022030450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12025491 and 12025500.

It is not an unprimeable number, because it can be changed into a prime (12025513) 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 7 ways as a sum of consecutive naturals, for example, 400836 + ... + 400865.

It is an arithmetic number, because the mean of its divisors is an integer number (2405106).

Almost surely, 2^12025515 is an apocalyptic number.

12025515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12025515 is a deficient number, since it is larger than the sum of its proper divisors (7215333).

12025515 is an equidigital number, since it uses as much as digits as its factorization.

12025515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801709.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 12025515 is about 3467.7824326217. The cubic root of 12025515 is about 229.1049968861.

Adding to 12025515 its reverse (51552021), we get a palindrome (63577536).

The spelling of 12025515 in words is "twelve million, twenty-five thousand, five hundred fifteen".