503650121 has 16 divisors (see below), whose sum is σ = 550402944. Its totient is φ = 458089344.

The previous prime is 503650117. The next prime is 503650127. The reversal of 503650121 is 121056305.

It is a cyclic number.

It is not a de Polignac number, because 503650121 - 2² = 503650117 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (503650127) 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, 303125 + ... + 304781.

It is an arithmetic number, because the mean of its divisors is an integer number (34400184).

Almost surely, 2^503650121 is an apocalyptic number.

It is an amenable number.

503650121 is a deficient number, since it is larger than the sum of its proper divisors (46752823).

503650121 is a wasteful number, since it uses less digits than its factorization.

503650121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2000.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 503650121 is about 22442.1505431186. The cubic root of 503650121 is about 795.6272470243.

The spelling of 503650121 in words is "five hundred three million, six hundred fifty thousand, one hundred twenty-one".