502505121 has 4 divisors (see below), whose sum is σ = 670006832. Its totient is φ = 335003412.

The previous prime is 502505119. The next prime is 502505131. The reversal of 502505121 is 121505205.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 502505121 - 2¹ = 502505119 is a prime.

It is a super-2 number, since 2×502505121² = 505022793262449282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (502505111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83750851 + ... + 83750856.

It is an arithmetic number, because the mean of its divisors is an integer number (167501708).

Almost surely, 2^502505121 is an apocalyptic number.

It is an amenable number.

502505121 is a deficient number, since it is larger than the sum of its proper divisors (167501711).

502505121 is a wasteful number, since it uses less digits than its factorization.

502505121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167501710.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 502505121 is about 22416.6259950065. The cubic root of 502505121 is about 795.0238622639.

The spelling of 502505121 in words is "five hundred two million, five hundred five thousand, one hundred twenty-one".