13525501 has 6 divisors (see below), whose sum is σ = 14867006. Its totient is φ = 12295800.

The previous prime is 13525493. The next prime is 13525529. The reversal of 13525501 is 10552531.

It can be written as a sum of positive squares in only one way, i.e., 13498276 + 27225 = 3674^2 + 165^2 .

It is not a de Polignac number, because 13525501 - 2³ = 13525493 is a prime.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13525601) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55770 + ... + 56011.

Almost surely, 2^13525501 is an apocalyptic number.

13525501 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13525501 is a deficient number, since it is larger than the sum of its proper divisors (1341505).

13525501 is a wasteful number, since it uses less digits than its factorization.

13525501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111803 (or 111792 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 13525501 is about 3677.7032234807. The cubic root of 13525501 is about 238.2599905817.

The spelling of 13525501 in words is "thirteen million, five hundred twenty-five thousand, five hundred one".