12550263540 has 24 divisors (see below), whose sum is σ = 35140738080. Its totient is φ = 3346736928.

The previous prime is 12550263521. The next prime is 12550263601. The reversal of 12550263540 is 4536205521.

It is a super-2 number, since 2×12550263540² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104585470 + ... + 104585589.

It is an arithmetic number, because the mean of its divisors is an integer number (1464197420).

Almost surely, 2^12550263540 is an apocalyptic number.

12550263540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12550263540 is an abundant number, since it is smaller than the sum of its proper divisors (22590474540).

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

12550263540 is a wasteful number, since it uses less digits than its factorization.

12550263540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209171071 (or 209171069 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 33.

The spelling of 12550263540 in words is "twelve billion, five hundred fifty million, two hundred sixty-three thousand, five hundred forty".