13750012550 has 12 divisors (see below), whose sum is σ = 25575023436. Its totient is φ = 5500005000.

The previous prime is 13750012543. The next prime is 13750012553. The reversal of 13750012550 is 5521005731.

It is a happy number.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13750012553) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 137500076 + ... + 137500175.

It is an arithmetic number, because the mean of its divisors is an integer number (2131251953).

Almost surely, 2^13750012550 is an apocalyptic number.

13750012550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13750012550 is a deficient number, since it is larger than the sum of its proper divisors (11825010886).

13750012550 is a wasteful number, since it uses less digits than its factorization.

13750012550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275000263 (or 275000258 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 29.

The spelling of 13750012550 in words is "thirteen billion, seven hundred fifty million, twelve thousand, five hundred fifty".