50115213 has 8 divisors (see below), whose sum is σ = 74244800. Its totient is φ = 33410124.

The previous prime is 50115211. The next prime is 50115223. The reversal of 50115213 is 31251105.

50115213 is a `hidden beast` number, since 501 + 152 + 13 = 666.

It is not a de Polignac number, because 50115213 - 2¹ = 50115211 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 (50115211) 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, 928033 + ... + 928086.

It is an arithmetic number, because the mean of its divisors is an integer number (9280600).

Almost surely, 2^50115213 is an apocalyptic number.

It is an amenable number.

50115213 is a deficient number, since it is larger than the sum of its proper divisors (24129587).

50115213 is a wasteful number, since it uses less digits than its factorization.

50115213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1856128 (or 1856122 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 50115213 is about 7079.2099135426. The cubic root of 50115213 is about 368.6858983471.

Adding to 50115213 its reverse (31251105), we get a palindrome (81366318).

The spelling of 50115213 in words is "fifty million, one hundred fifteen thousand, two hundred thirteen".