12154442025 has 96 divisors (see below), whose sum is σ = 23821332480. Its totient is φ = 5402592000.

The previous prime is 12154441993. The next prime is 12154442051. The reversal of 12154442025 is 52024445121.

It is not a de Polignac number, because 12154442025 - 2⁵ = 12154441993 is a prime.

It is a super-2 number, since 2×12154442025² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12154441983 and 12154442001.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 473419 + ... + 498431.

It is an arithmetic number, because the mean of its divisors is an integer number (248138880).

Almost surely, 2^12154442025 is an apocalyptic number.

12154442025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12154442025 is a deficient number, since it is larger than the sum of its proper divisors (11666890455).

12154442025 is a wasteful number, since it uses less digits than its factorization.

12154442025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25087 (or 25082 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

Adding to 12154442025 its reverse (52024445121), we get a palindrome (64178887146).

The spelling of 12154442025 in words is "twelve billion, one hundred fifty-four million, four hundred forty-two thousand, twenty-five".