507285121 has 4 divisors (see below), whose sum is σ = 579754432. Its totient is φ = 434815812.

The previous prime is 507285109. The next prime is 507285157. The reversal of 507285121 is 121582705.

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 a cyclic number.

It is not a de Polignac number, because 507285121 - 2⁷ = 507284993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (507285221) 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, 36234645 + ... + 36234658.

It is an arithmetic number, because the mean of its divisors is an integer number (144938608).

Almost surely, 2^507285121 is an apocalyptic number.

It is an amenable number.

507285121 is a deficient number, since it is larger than the sum of its proper divisors (72469311).

507285121 is an equidigital number, since it uses as much as digits as its factorization.

507285121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72469310.

The product of its (nonzero) digits is 5600, while the sum is 31.

The square root of 507285121 is about 22522.9909425902. The cubic root of 507285121 is about 797.5367571820.

The spelling of 507285121 in words is "five hundred seven million, two hundred eighty-five thousand, one hundred twenty-one".