12025512 has 24 divisors (see below), whose sum is σ = 32569290. Its totient is φ = 4008480.

The previous prime is 12025501. The next prime is 12025513. The reversal of 12025512 is 21552021.

It can be written as a sum of positive squares in only one way, i.e., 11329956 + 695556 = 3366^2 + 834^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×12025512² = 289225877724288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (12025513) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 83439 + ... + 83582.

Almost surely, 2^12025512 is an apocalyptic number.

12025512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12025512 is an abundant number, since it is smaller than the sum of its proper divisors (20543778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12025512 is a wasteful number, since it uses less digits than its factorization.

12025512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167033 (or 167026 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 12025512 is about 3467.7820000686. The cubic root of 12025512 is about 229.1049778346.

Adding to 12025512 its reverse (21552021), we get a palindrome (33577533).

The spelling of 12025512 in words is "twelve million, twenty-five thousand, five hundred twelve".