10250509 has 4 divisors (see below), whose sum is σ = 10261216. Its totient is φ = 10239804.

The previous prime is 10250503. The next prime is 10250521. The reversal of 10250509 is 90505201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 10250509 - 2⁷ = 10250381 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10250509.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10250503) 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 in 3 ways as a sum of consecutive naturals, for example, 3759 + ... + 5884.

It is an arithmetic number, because the mean of its divisors is an integer number (2565304).

Almost surely, 2^10250509 is an apocalyptic number.

It is an amenable number.

10250509 is a deficient number, since it is larger than the sum of its proper divisors (10707).

10250509 is an equidigital number, since it uses as much as digits as its factorization.

10250509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10706.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 10250509 is about 3201.6416101744. The cubic root of 10250509 is about 217.2276699055.

The spelling of 10250509 in words is "ten million, two hundred fifty thousand, five hundred nine".