50509450 has 24 divisors (see below), whose sum is σ = 94204908. Its totient is φ = 20148480.

The previous prime is 50509441. The next prime is 50509453. The reversal of 50509450 is 5490505.

It is a Cunningham number, because it is equal to 7107²+1.

It can be written as a sum of positive squares in 6 ways, for example, as 5659641 + 44849809 = 2379^2 + 6697^2 .

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (50509453) 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 11 ways as a sum of consecutive naturals, for example, 20484 + ... + 22816.

Almost surely, 2^50509450 is an apocalyptic number.

50509450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

50509450 is a deficient number, since it is larger than the sum of its proper divisors (43695458).

50509450 is a wasteful number, since it uses less digits than its factorization.

50509450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2778 (or 2773 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 50509450 is about 7107.0000703532. Note that the first 4 decimals coincide. The cubic root of 50509450 is about 369.6501440949.

Adding to 50509450 its reverse (5490505), we get a palindrome (55999955).

The spelling of 50509450 in words is "fifty million, five hundred nine thousand, four hundred fifty".