10525909 has 2 divisors, whose sum is σ = 10525910. Its totient is φ = 10525908.

The previous prime is 10525897. The next prime is 10525913. The reversal of 10525909 is 90952501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7452900 + 3073009 = 2730^2 + 1753^2 .

It is a cyclic number.

It is not a de Polignac number, because 10525909 - 2²³ = 2137301 is a prime.

It is a super-2 number, since 2×10525909² = 221589520552562, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10525919) 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, 5262954 + 5262955.

It is an arithmetic number, because the mean of its divisors is an integer number (5262955).

Almost surely, 2^10525909 is an apocalyptic number.

It is an amenable number.

10525909 is a deficient number, since it is larger than the sum of its proper divisors (1).

10525909 is an equidigital number, since it uses as much as digits as its factorization.

10525909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4050, while the sum is 31.

The square root of 10525909 is about 3244.3657315414. The cubic root of 10525909 is about 219.1559185182.

The spelling of 10525909 in words is "ten million, five hundred twenty-five thousand, nine hundred nine".