50423009 has 18 divisors (see below), whose sum is σ = 63524790. Its totient is φ = 39888576.

The previous prime is 50422997. The next prime is 50423011. The reversal of 50423009 is 90032405.

It can be written as a sum of positive squares in 3 ways, for example, as 1030225 + 49392784 = 1015^2 + 7028^2 .

It is a de Polignac number, because none of the positive numbers 2^k-50423009 is a prime.

It is a super-2 number, since 2×50423009² = 5084959673228162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (50423029) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5237 + ... + 11325.

It is an arithmetic number, because the mean of its divisors is an integer number (3529155).

Almost surely, 2^50423009 is an apocalyptic number.

It is an amenable number.

50423009 is a deficient number, since it is larger than the sum of its proper divisors (13101781).

50423009 is a wasteful number, since it uses less digits than its factorization.

50423009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6129 (or 6109 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 50423009 is about 7100.9160676634. The cubic root of 50423009 is about 369.4391527302.

The spelling of 50423009 in words is "fifty million, four hundred twenty-three thousand, nine".