50142431 has 4 divisors (see below), whose sum is σ = 50157864. Its totient is φ = 50127000.

The previous prime is 50142413. The next prime is 50142451. The reversal of 50142431 is 13424105.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 50142431 - 2¹⁸ = 49880287 is a prime.

It is a super-2 number, since 2×50142431² = 5028526773179522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50142451) 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, 740 + ... + 10041.

It is an arithmetic number, because the mean of its divisors is an integer number (12539466).

Almost surely, 2^50142431 is an apocalyptic number.

50142431 is a deficient number, since it is larger than the sum of its proper divisors (15433).

50142431 is a wasteful number, since it uses less digits than its factorization.

50142431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15432.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 50142431 is about 7081.1320422656. The cubic root of 50142431 is about 368.7526317537.

Adding to 50142431 its reverse (13424105), we get a palindrome (63566536).

The spelling of 50142431 in words is "fifty million, one hundred forty-two thousand, four hundred thirty-one".