50018239249 has 4 divisors (see below), whose sum is σ = 54565351920. Its totient is φ = 45471126580.

The previous prime is 50018239189. The next prime is 50018239301. The reversal of 50018239249 is 94293281005.

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 not a de Polignac number, because 50018239249 - 2¹³ = 50018231057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50018239849) 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, 2273556319 + ... + 2273556340.

It is an arithmetic number, because the mean of its divisors is an integer number (13641337980).

Almost surely, 2^50018239249 is an apocalyptic number.

It is an amenable number.

50018239249 is a deficient number, since it is larger than the sum of its proper divisors (4547112671).

50018239249 is a wasteful number, since it uses less digits than its factorization.

50018239249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4547112670.

The product of its (nonzero) digits is 155520, while the sum is 43.

The spelling of 50018239249 in words is "fifty billion, eighteen million, two hundred thirty-nine thousand, two hundred forty-nine".