50405142 has 16 divisors (see below), whose sum is σ = 101430720. Its totient is φ = 16698312.

The previous prime is 50405129. The next prime is 50405149. The reversal of 50405142 is 24150405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50405149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24792 + ... + 26747.

It is an arithmetic number, because the mean of its divisors is an integer number (6339420).

Almost surely, 2^50405142 is an apocalyptic number.

50405142 is an abundant number, since it is smaller than the sum of its proper divisors (51025578).

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

50405142 is a wasteful number, since it uses less digits than its factorization.

50405142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51707.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 50405142 is about 7099.6578790812. The cubic root of 50405142 is about 369.3955116143.

Adding to 50405142 its reverse (24150405), we get a palindrome (74555547).

The spelling of 50405142 in words is "fifty million, four hundred five thousand, one hundred forty-two".