50142531 has 8 divisors (see below), whose sum is σ = 69013504. Its totient is φ = 32349960.

The previous prime is 50142529. The next prime is 50142551. The reversal of 50142531 is 13524105.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 50142531 - 2¹ = 50142529 is a prime.

It is a super-2 number, since 2×50142531² = 5028546830171922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50142498 and 50142507.

It is not an unprimeable number, because it can be changed into a prime (50142551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 269491 + ... + 269676.

It is an arithmetic number, because the mean of its divisors is an integer number (8626688).

Almost surely, 2^50142531 is an apocalyptic number.

50142531 is a deficient number, since it is larger than the sum of its proper divisors (18870973).

50142531 is a wasteful number, since it uses less digits than its factorization.

50142531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539201.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 50142531 is about 7081.1391032799. The cubic root of 50142531 is about 368.7528768903.

Adding to 50142531 its reverse (13524105), we get a palindrome (63666636).

The spelling of 50142531 in words is "fifty million, one hundred forty-two thousand, five hundred thirty-one".