50139269 has 4 divisors (see below), whose sum is σ = 51362220. Its totient is φ = 48916320.

The previous prime is 50139263. The next prime is 50139281. The reversal of 50139269 is 96293105.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14915044 + 35224225 = 3862^2 + 5935^2 .

It is a cyclic number.

It is not a de Polignac number, because 50139269 - 2¹⁶ = 50073733 is a prime.

It is a super-2 number, since 2×50139269² = 5027892591708722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50139263) 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, 611414 + ... + 611495.

It is an arithmetic number, because the mean of its divisors is an integer number (12840555).

Almost surely, 2^50139269 is an apocalyptic number.

It is an amenable number.

50139269 is a deficient number, since it is larger than the sum of its proper divisors (1222951).

50139269 is a wasteful number, since it uses less digits than its factorization.

50139269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222950.

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 50139269 is about 7080.9087693600. The cubic root of 50139269 is about 368.7448803656.

The spelling of 50139269 in words is "fifty million, one hundred thirty-nine thousand, two hundred sixty-nine".