12525532004550 has 48 divisors (see below), whose sum is σ = 31072113020880. Its totient is φ = 3339196314240.

The previous prime is 12525532004429. The next prime is 12525532004599. The reversal of 12525532004550 is 5540023552521.

It is a junction number, because it is equal to n+sod(n) for n = 12525532004499 and 12525532004508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11287705 + ... + 12347604.

It is an arithmetic number, because the mean of its divisors is an integer number (647335687935).

Almost surely, 2^{12525532004550} is an apocalyptic number.

12525532004550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12525532004550 is an abundant number, since it is smaller than the sum of its proper divisors (18546581016330).

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

12525532004550 is a wasteful number, since it uses less digits than its factorization.

12525532004550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23638857 (or 23638852 counting only the distinct ones).

The product of its (nonzero) digits is 300000, while the sum is 39.

The spelling of 12525532004550 in words is "twelve trillion, five hundred twenty-five billion, five hundred thirty-two million, four thousand, five hundred fifty".