50111055140 has 12 divisors (see below), whose sum is σ = 105233215836. Its totient is φ = 20044422048.

The previous prime is 50111055131. The next prime is 50111055149. The reversal of 50111055140 is 4155011105.

It is an interprime number because it is at equal distance from previous prime (50111055131) and next prime (50111055149).

It can be written as a sum of positive squares in 2 ways, for example, as 14785100836 + 35325954304 = 121594^2 + 187952^2 .

It is a super-2 number, since 2×50111055140² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (50111055149) 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, 1252776359 + ... + 1252776398.

It is an arithmetic number, because the mean of its divisors is an integer number (8769434653).

Almost surely, 2^50111055140 is an apocalyptic number.

It is an amenable number.

50111055140 is an abundant number, since it is smaller than the sum of its proper divisors (55122160696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50111055140 is a wasteful number, since it uses less digits than its factorization.

50111055140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2505552766 (or 2505552764 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 23.

Adding to 50111055140 its reverse (4155011105), we get a palindrome (54266066245).

The spelling of 50111055140 in words is "fifty billion, one hundred eleven million, fifty-five thousand, one hundred forty".