10252509 has 4 divisors (see below), whose sum is σ = 13670016. Its totient is φ = 6835004.

The previous prime is 10252507. The next prime is 10252519. The reversal of 10252509 is 90525201.

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.

It is a cyclic number.

It is not a de Polignac number, because 10252509 - 2¹ = 10252507 is a prime.

It is a super-2 number, since 2×10252509² = 210227881590162, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10252507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1708749 + ... + 1708754.

It is an arithmetic number, because the mean of its divisors is an integer number (3417504).

Almost surely, 2^10252509 is an apocalyptic number.

It is an amenable number.

10252509 is a deficient number, since it is larger than the sum of its proper divisors (3417507).

10252509 is an equidigital number, since it uses as much as digits as its factorization.

10252509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3417506.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 10252509 is about 3201.9539347092. The cubic root of 10252509 is about 217.2417969141.

The spelling of 10252509 in words is "ten million, two hundred fifty-two thousand, five hundred nine".