13565250 has 48 divisors (see below), whose sum is σ = 36686520. Its totient is φ = 3616800.

The previous prime is 13565213. The next prime is 13565263. The reversal of 13565250 is 5256531.

13565250 is a `hidden beast` number, since 1 + 3 + 5 + 652 + 5 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 7469289 + 6095961 = 2733^2 + 2469^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 765 + ... + 5264.

Almost surely, 2^13565250 is an apocalyptic number.

13565250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13565250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18343260).

13565250 is an abundant number, since it is smaller than the sum of its proper divisors (23121270).

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

13565250 is a wasteful number, since it uses less digits than its factorization.

13565250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6052 (or 6039 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 13565250 is about 3683.1033110680. The cubic root of 13565250 is about 238.4931633129.

The spelling of 13565250 in words is "thirteen million, five hundred sixty-five thousand, two hundred fifty".