50785139354 has 4 divisors (see below), whose sum is σ = 76177709034. Its totient is φ = 25392569676.

The previous prime is 50785139347. The next prime is 50785139359. The reversal of 50785139354 is 45393158705.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45393158705 = 5 ⋅9078631741.

It can be written as a sum of positive squares in only one way, i.e., 46576114225 + 4209025129 = 215815^2 + 64877^2 .

It is not an unprimeable number, because it can be changed into a prime (50785139359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12696284837 + ... + 12696284840.

Almost surely, 2^50785139354 is an apocalyptic number.

50785139354 is a deficient number, since it is larger than the sum of its proper divisors (25392569680).

50785139354 is a wasteful number, since it uses less digits than its factorization.

50785139354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25392569679.

The product of its (nonzero) digits is 2268000, while the sum is 50.

The spelling of 50785139354 in words is "fifty billion, seven hundred eighty-five million, one hundred thirty-nine thousand, three hundred fifty-four".