12456533025 has 48 divisors (see below), whose sum is σ = 23314936320. Its totient is φ = 6518116800.

The previous prime is 12456533021. The next prime is 12456533027. The reversal of 12456533025 is 52033565421.

12456533025 is a `hidden beast` number, since 1 + 245 + 65 + 330 + 25 = 666.

It is not a de Polignac number, because 12456533025 - 2² = 12456533021 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12456533021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 138321 + ... + 209870.

It is an arithmetic number, because the mean of its divisors is an integer number (485727840).

Almost surely, 2^12456533025 is an apocalyptic number.

12456533025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12456533025 is a deficient number, since it is larger than the sum of its proper divisors (10858403295).

12456533025 is a wasteful number, since it uses less digits than its factorization.

12456533025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348263 (or 348252 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The spelling of 12456533025 in words is "twelve billion, four hundred fifty-six million, five hundred thirty-three thousand, twenty-five".