12555455450 has 24 divisors (see below), whose sum is σ = 23850027072. Its totient is φ = 4915326320.

The previous prime is 12555455447. The next prime is 12555455501. The reversal of 12555455450 is 5455455521.

It is a junction number, because it is equal to n+sod(n) for n = 12555455398 and 12555455407.

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, 2669024 + ... + 2673723.

It is an arithmetic number, because the mean of its divisors is an integer number (993751128).

Almost surely, 2^12555455450 is an apocalyptic number.

12555455450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12555455450 is a deficient number, since it is larger than the sum of its proper divisors (11294571622).

12555455450 is a wasteful number, since it uses less digits than its factorization.

12555455450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5342806 (or 5342801 counting only the distinct ones).

The product of its (nonzero) digits is 500000, while the sum is 41.

The spelling of 12555455450 in words is "twelve billion, five hundred fifty-five million, four hundred fifty-five thousand, four hundred fifty".