50521131 has 8 divisors (see below), whose sum is σ = 74846160. Its totient is φ = 33680736.

The previous prime is 50521091. The next prime is 50521151. The reversal of 50521131 is 13112505.

It is not a de Polignac number, because 50521131 - 2⁹ = 50520619 is a prime.

It is a super-2 number, since 2×50521131² = 5104769355038322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (50521151) 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 7 ways as a sum of consecutive naturals, for example, 935550 + ... + 935603.

It is an arithmetic number, because the mean of its divisors is an integer number (9355770).

Almost surely, 2^50521131 is an apocalyptic number.

50521131 is a deficient number, since it is larger than the sum of its proper divisors (24325029).

50521131 is a wasteful number, since it uses less digits than its factorization.

50521131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1871162 (or 1871156 counting only the distinct ones).

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

The square root of 50521131 is about 7107.8218182507. The cubic root of 50521131 is about 369.6786374462.

Adding to 50521131 its reverse (13112505), we get a palindrome (63633636).

The spelling of 50521131 in words is "fifty million, five hundred twenty-one thousand, one hundred thirty-one".