50111242542 has 64 divisors (see below), whose sum is σ = 117574214400. Its totient is φ = 15776687520.

The previous prime is 50111242537. The next prime is 50111242553. The reversal of 50111242542 is 24524211105.

It is a happy number.

50111242542 is a `hidden beast` number, since 5 + 0 + 1 + 112 + 4 + 2 + 542 = 666.

It is a super-2 number, since 2×50111242542² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 265828 + ... + 413384.

It is an arithmetic number, because the mean of its divisors is an integer number (1837097100).

Almost surely, 2^50111242542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50111242542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58787107200).

50111242542 is an abundant number, since it is smaller than the sum of its proper divisors (67462971858).

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

50111242542 is a wasteful number, since it uses less digits than its factorization.

50111242542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147918 (or 147912 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

Adding to 50111242542 its reverse (24524211105), we get a palindrome (74635453647).

The spelling of 50111242542 in words is "fifty billion, one hundred eleven million, two hundred forty-two thousand, five hundred forty-two".