13225536 has 42 divisors (see below), whose sum is σ = 37910262. Its totient is φ = 4408320.

The previous prime is 13225517. The next prime is 13225549. The reversal of 13225536 is 63552231.

It can be written as a sum of positive squares in only one way, i.e., 12110400 + 1115136 = 3480^2 + 1056^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10905 + ... + 12056.

Almost surely, 2^13225536 is an apocalyptic number.

13225536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13225536 is an abundant number, since it is smaller than the sum of its proper divisors (24684726).

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

13225536 is a wasteful number, since it uses less digits than its factorization.

13225536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22979 (or 22966 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 13225536 is about 3636.6930032655. The cubic root of 13225536 is about 236.4854509984.

Adding to 13225536 its reverse (63552231), we get a palindrome (76777767).

The spelling of 13225536 in words is "thirteen million, two hundred twenty-five thousand, five hundred thirty-six".