12455525042 has 4 divisors (see below), whose sum is σ = 18683287566. Its totient is φ = 6227762520.

The previous prime is 12455525021. The next prime is 12455525057. The reversal of 12455525042 is 24052555421.

12455525042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24052555421 = 54503 ⋅441307.

It can be written as a sum of positive squares in only one way, i.e., 7177647841 + 5277877201 = 84721^2 + 72649^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12455524993 and 12455525011.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3113881259 + ... + 3113881262.

Almost surely, 2^12455525042 is an apocalyptic number.

12455525042 is a deficient number, since it is larger than the sum of its proper divisors (6227762524).

12455525042 is an equidigital number, since it uses as much as digits as its factorization.

12455525042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6227762523.

The product of its (nonzero) digits is 80000, while the sum is 35.

The spelling of 12455525042 in words is "twelve billion, four hundred fifty-five million, five hundred twenty-five thousand, forty-two".