10049509 has 4 divisors (see below), whose sum is σ = 10057216. Its totient is φ = 10041804.

The previous prime is 10049453. The next prime is 10049513. The reversal of 10049509 is 90594001.

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 a de Polignac number, because none of the positive numbers 2^k-10049509 is a prime.

It is a super-2 number, since 2×10049509² = 201985262282162, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10049519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1359 + ... + 4684.

It is an arithmetic number, because the mean of its divisors is an integer number (2514304).

Almost surely, 2^10049509 is an apocalyptic number.

It is an amenable number.

10049509 is a deficient number, since it is larger than the sum of its proper divisors (7707).

10049509 is an equidigital number, since it uses as much as digits as its factorization.

10049509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7706.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 10049509 is about 3170.0960553270. The cubic root of 10049509 is about 215.7984302105.

The spelling of 10049509 in words is "ten million, forty-nine thousand, five hundred nine".