50113585261 has 4 divisors (see below), whose sum is σ = 52751142400. Its totient is φ = 47476028124.

The previous prime is 50113585243. The next prime is 50113585273. The reversal of 50113585261 is 16258531105.

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 an emirpimes, since its reverse is a distinct semiprime: 16258531105 = 5 ⋅3251706221.

It is a cyclic number.

It is not a de Polignac number, because 50113585261 - 2⁹ = 50113584749 is a prime.

It is a super-2 number, since 2×50113585261² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50113585261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50113585231) 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, 1318778541 + ... + 1318778578.

It is an arithmetic number, because the mean of its divisors is an integer number (13187785600).

Almost surely, 2^50113585261 is an apocalyptic number.

It is an amenable number.

50113585261 is a deficient number, since it is larger than the sum of its proper divisors (2637557139).

50113585261 is a wasteful number, since it uses less digits than its factorization.

50113585261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2637557138.

The product of its (nonzero) digits is 36000, while the sum is 37.

It can be divided in two parts, 50 and 113585261, that added together give a palindrome (113585311).

The spelling of 50113585261 in words is "fifty billion, one hundred thirteen million, five hundred eighty-five thousand, two hundred sixty-one".