13049525 has 6 divisors (see below), whose sum is σ = 16181442. Its totient is φ = 10439600.

The previous prime is 13049497. The next prime is 13049551. The reversal of 13049525 is 52594031.

It can be written as a sum of positive squares in 3 ways, for example, as 139876 + 12909649 = 374^2 + 3593^2 .

It is not a de Polignac number, because 13049525 - 2¹² = 13045429 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 260966 + ... + 261015.

It is an arithmetic number, because the mean of its divisors is an integer number (2696907).

Almost surely, 2^13049525 is an apocalyptic number.

It is an amenable number.

13049525 is a deficient number, since it is larger than the sum of its proper divisors (3131917).

13049525 is an equidigital number, since it uses as much as digits as its factorization.

13049525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521991 (or 521986 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 13049525 is about 3612.4126287012. The cubic root of 13049525 is about 235.4316797624.

The spelling of 13049525 in words is "thirteen million, forty-nine thousand, five hundred twenty-five".