13502250 has 96 divisors (see below), whose sum is σ = 38767248. Its totient is φ = 3379200.

The previous prime is 13502249. The next prime is 13502263. The reversal of 13502250 is 5220531.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1034289 + 12467961 = 1017^2 + 3531^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38074 + ... + 38426.

Almost surely, 2^13502250 is an apocalyptic number.

13502250 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 13502250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19383624).

13502250 is an abundant number, since it is smaller than the sum of its proper divisors (25264998).

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

13502250 is a wasteful number, since it uses less digits than its factorization.

13502250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393 (or 380 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 13502250 is about 3674.5407876359. The cubic root of 13502250 is about 238.1233854025.

Adding to 13502250 its reverse (5220531), we get a palindrome (18722781).

It can be divided in two parts, 1350 and 2250, that added together give a square (3600 = 60²).

The spelling of 13502250 in words is "thirteen million, five hundred two thousand, two hundred fifty".