13875552 has 36 divisors (see below), whose sum is σ = 39459420. Its totient is φ = 4625088.

The previous prime is 13875551. The next prime is 13875557. The reversal of 13875552 is 25557831.

13875552 is a `hidden beast` number, since 1 + 38 + 75 + 552 = 666.

13875552 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

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 5 ways as a sum of consecutive naturals, for example, 23802 + ... + 24377.

It is an arithmetic number, because the mean of its divisors is an integer number (1096095).

Almost surely, 2^13875552 is an apocalyptic number.

13875552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13875552 is an abundant number, since it is smaller than the sum of its proper divisors (25583868).

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

13875552 is a wasteful number, since it uses less digits than its factorization.

13875552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48195 (or 48184 counting only the distinct ones).

The product of its digits is 42000, while the sum is 36.

The square root of 13875552 is about 3724.9902013294. The cubic root of 13875552 is about 240.2979632548.

The spelling of 13875552 in words is "thirteen million, eight hundred seventy-five thousand, five hundred fifty-two".