501221514 has 16 divisors (see below), whose sum is σ = 1002688128. Its totient is φ = 167032992.

The previous prime is 501221509. The next prime is 501221527. The reversal of 501221514 is 415122105.

It is an unprimeable number.

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, 26559 + ... + 41325.

It is an arithmetic number, because the mean of its divisors is an integer number (62668008).

Almost surely, 2^501221514 is an apocalyptic number.

501221514 is an abundant number, since it is smaller than the sum of its proper divisors (501466614).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

501221514 is a wasteful number, since it uses less digits than its factorization.

501221514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20429.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 501221514 is about 22387.9769965935. The cubic root of 501221514 is about 794.3463445545.

Adding to 501221514 its reverse (415122105), we get a palindrome (916343619).

The spelling of 501221514 in words is "five hundred one million, two hundred twenty-one thousand, five hundred fourteen".