12454525215 has 48 divisors (see below), whose sum is σ = 23560411680. Its totient is φ = 6035984640.

The previous prime is 12454525211. The next prime is 12454525229. The reversal of 12454525215 is 51252545421.

12454525215 is a `hidden beast` number, since 124 + 5 + 4 + 5 + 2 + 521 + 5 = 666.

It is not a de Polignac number, because 12454525215 - 2² = 12454525211 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12454525215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12454525211) 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, 1713529 + ... + 1720781.

It is an arithmetic number, because the mean of its divisors is an integer number (490841910).

Almost surely, 2^12454525215 is an apocalyptic number.

12454525215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12454525215 is a deficient number, since it is larger than the sum of its proper divisors (11105886465).

12454525215 is a wasteful number, since it uses less digits than its factorization.

12454525215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10744 (or 10741 counting only the distinct ones).

The product of its digits is 80000, while the sum is 36.

The spelling of 12454525215 in words is "twelve billion, four hundred fifty-four million, five hundred twenty-five thousand, two hundred fifteen".