13199525 has 6 divisors (see below), whose sum is σ = 16367442. Its totient is φ = 10559600.

The previous prime is 13199507. The next prime is 13199551. The reversal of 13199525 is 52599131.

It can be written as a sum of positive squares in 3 ways, for example, as 232324 + 12967201 = 482^2 + 3601^2 .

It is not a de Polignac number, because 13199525 - 2¹⁰ = 13198501 is a prime.

It is a Duffinian number.

It is a congruent 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 5 ways as a sum of consecutive naturals, for example, 263966 + ... + 264015.

It is an arithmetic number, because the mean of its divisors is an integer number (2727907).

Almost surely, 2^13199525 is an apocalyptic number.

It is an amenable number.

13199525 is a deficient number, since it is larger than the sum of its proper divisors (3167917).

13199525 is an equidigital number, since it uses as much as digits as its factorization.

13199525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527991 (or 527986 counting only the distinct ones).

The product of its digits is 12150, while the sum is 35.

The square root of 13199525 is about 3633.1150546053. The cubic root of 13199525 is about 236.3303152553.

The spelling of 13199525 in words is "thirteen million, one hundred ninety-nine thousand, five hundred twenty-five".