13525601 has 2 divisors, whose sum is σ = 13525602. Its totient is φ = 13525600.

The previous prime is 13525559. The next prime is 13525639. The reversal of 13525601 is 10652531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13104400 + 421201 = 3620^2 + 649^2 .

It is a cyclic number.

It is not a de Polignac number, because 13525601 - 2¹⁴ = 13509217 is a prime.

It is a super-2 number, since 2×13525601² = 365883764822402, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13525661) by changing a digit.

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 as a sum of consecutive naturals, namely, 6762800 + 6762801.

It is an arithmetic number, because the mean of its divisors is an integer number (6762801).

Almost surely, 2^13525601 is an apocalyptic number.

It is an amenable number.

13525601 is a deficient number, since it is larger than the sum of its proper divisors (1).

13525601 is an equidigital number, since it uses as much as digits as its factorization.

13525601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 13525601 is about 3677.7168188973. The cubic root of 13525601 is about 238.2605777673.

The spelling of 13525601 in words is "thirteen million, five hundred twenty-five thousand, six hundred one".