50442142 has 4 divisors (see below), whose sum is σ = 75663216. Its totient is φ = 25221070.

The previous prime is 50442121. The next prime is 50442149. The reversal of 50442142 is 24124405.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24124405 = 5 ⋅4824881.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50442149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12610534 + ... + 12610537.

It is an arithmetic number, because the mean of its divisors is an integer number (18915804).

Almost surely, 2^50442142 is an apocalyptic number.

50442142 is a deficient number, since it is larger than the sum of its proper divisors (25221074).

50442142 is a wasteful number, since it uses less digits than its factorization.

50442142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25221073.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 50442142 is about 7102.2631604299. The cubic root of 50442142 is about 369.4858746904.

Adding to 50442142 its reverse (24124405), we get a palindrome (74566547).

The spelling of 50442142 in words is "fifty million, four hundred forty-two thousand, one hundred forty-two".