12525405252400 has 60 divisors (see below), whose sum is σ = 30402515966872. Its totient is φ = 4958510929920.

The previous prime is 12525405252383. The next prime is 12525405252427. The reversal of 12525405252400 is 425250452521.

It is a self number, because there is not a number n which added to its sum of digits gives 12525405252400.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 161371062 + ... + 161448661.

Almost surely, 2^{12525405252400} is an apocalyptic number.

12525405252400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12525405252400 is an abundant number, since it is smaller than the sum of its proper divisors (17877110714472).

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

12525405252400 is a wasteful number, since it uses less digits than its factorization.

12525405252400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322819838 (or 322819827 counting only the distinct ones).

The product of its (nonzero) digits is 160000, while the sum is 37.

The spelling of 12525405252400 in words is "twelve trillion, five hundred twenty-five billion, four hundred five million, two hundred fifty-two thousand, four hundred".