50515151 has 16 divisors (see below), whose sum is σ = 53913600. Its totient is φ = 47258400.

The previous prime is 50515133. The next prime is 50515163. The reversal of 50515151 is 15151505.

It is a happy number.

50515151 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 50515151 - 2¹⁰ = 50514127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50515121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129665 + ... + 130053.

It is an arithmetic number, because the mean of its divisors is an integer number (3369600).

Almost surely, 2^50515151 is an apocalyptic number.

50515151 is a deficient number, since it is larger than the sum of its proper divisors (3398449).

50515151 is a wasteful number, since it uses less digits than its factorization.

50515151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550.

The product of its (nonzero) digits is 625, while the sum is 23.

The square root of 50515151 is about 7107.4011424711. The cubic root of 50515151 is about 369.6640510383.

Adding to 50515151 its reverse (15151505), we get a palindrome (65666656).

The spelling of 50515151 in words is "fifty million, five hundred fifteen thousand, one hundred fifty-one".