13875550 has 24 divisors (see below), whose sum is σ = 27795096. Its totient is φ = 5123040.

The previous prime is 13875539. The next prime is 13875551. The reversal of 13875550 is 5557831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13875551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10024 + ... + 11323.

It is an arithmetic number, because the mean of its divisors is an integer number (1158129).

Almost surely, 2^13875550 is an apocalyptic number.

13875550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13875550 is an abundant number, since it is smaller than the sum of its proper divisors (13919546).

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

13875550 is a wasteful number, since it uses less digits than its factorization.

13875550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21372 (or 21367 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 34.

The square root of 13875550 is about 3724.9899328723. The cubic root of 13875550 is about 240.2979517094.

The spelling of 13875550 in words is "thirteen million, eight hundred seventy-five thousand, five hundred fifty".