13172552 has 16 divisors (see below), whose sum is σ = 26151660. Its totient is φ = 6198784.

The previous prime is 13172543. The next prime is 13172563. The reversal of 13172552 is 25527131.

It can be written as a sum of positive squares in 2 ways, for example, as 13060996 + 111556 = 3614^2 + 334^2 .

It is a super-2 number, since 2×13172552² = 347032252385408, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48293 + ... + 48564.

Almost surely, 2^13172552 is an apocalyptic number.

It is an amenable number.

13172552 is a deficient number, since it is larger than the sum of its proper divisors (12979108).

13172552 is a wasteful number, since it uses less digits than its factorization.

13172552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96880 (or 96876 counting only the distinct ones).

The product of its digits is 2100, while the sum is 26.

The square root of 13172552 is about 3629.4010525154. The cubic root of 13172552 is about 236.1692265137.

Adding to 13172552 its reverse (25527131), we get a palindrome (38699683).

The spelling of 13172552 in words is "thirteen million, one hundred seventy-two thousand, five hundred fifty-two".