12251563244540 has 12 divisors (see below), whose sum is σ = 25728282813576. Its totient is φ = 4900625297808.

The previous prime is 12251563244509. The next prime is 12251563244567. The reversal of 12251563244540 is 4544236515221.

12251563244540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12251563244491 and 12251563244500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 306289081094 + ... + 306289081133.

It is an arithmetic number, because the mean of its divisors is an integer number (2144023567798).

Almost surely, 2^{12251563244540} is an apocalyptic number.

12251563244540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12251563244540 is an abundant number, since it is smaller than the sum of its proper divisors (13476719569036).

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

12251563244540 is a wasteful number, since it uses less digits than its factorization.

12251563244540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612578162236 (or 612578162234 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 44.

Adding to 12251563244540 its reverse (4544236515221), we get a palindrome (16795799759761).

The spelling of 12251563244540 in words is "twelve trillion, two hundred fifty-one billion, five hundred sixty-three million, two hundred forty-four thousand, five hundred forty".