50509442 has 8 divisors (see below), whose sum is σ = 75829500. Its totient is φ = 25232944.

The previous prime is 50509441. The next prime is 50509453. The reversal of 50509442 is 24490505.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 31595641 + 18913801 = 5621^2 + 4349^2 .

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

It is not an unprimeable number, because it can be changed into a prime (50509441) 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, 7817 + ... + 12732.

Almost surely, 2^50509442 is an apocalyptic number.

50509442 is a deficient number, since it is larger than the sum of its proper divisors (25320058).

50509442 is a wasteful number, since it uses less digits than its factorization.

50509442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21780.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 50509442 is about 7106.9995075278. Note that the first 3 decimals coincide. The cubic root of 50509442 is about 369.6501245790.

Adding to 50509442 its reverse (24490505), we get a palindrome (74999947).

The spelling of 50509442 in words is "fifty million, five hundred nine thousand, four hundred forty-two".