50505050 has 48 divisors (see below), whose sum is σ = 96871032. Its totient is φ = 19584000.

The previous prime is 50505047. The next prime is 50505053. The reversal of 50505050 is 5050505.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (50505047) and next prime (50505053).

It can be written as a sum of positive squares in 12 ways, for example, as 17131321 + 33373729 = 4139^2 + 5777^2 .

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

50505050 is an undulating number in base 10.

50505050 is a modest number, since divided by 505050 gives 50 as remainder.

It is not an unprimeable number, because it can be changed into a prime (50505053) 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 23 ways as a sum of consecutive naturals, for example, 368582 + ... + 368718.

Almost surely, 2^50505050 is an apocalyptic number.

50505050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

50505050 is a deficient number, since it is larger than the sum of its proper divisors (46365982).

50505050 is a wasteful number, since it uses less digits than its factorization.

50505050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323 (or 318 counting only the distinct ones).

The product of its (nonzero) digits is 625, while the sum is 20.

The square root of 50505050 is about 7106.6905096536. The cubic root of 50505050 is about 369.6394100780.

Adding to 50505050 its reverse (5050505), we get a palindrome (55555555).

The spelling of 50505050 in words is "fifty million, five hundred five thousand, fifty".