506549121 has 16 divisors (see below), whose sum is σ = 727802880. Its totient is φ = 311529600.

The previous prime is 506549089. The next prime is 506549123. The reversal of 506549121 is 121945605.

It is not a de Polignac number, because 506549121 - 2⁵ = 506549089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (506549123) 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, 84421 + ... + 90221.

It is an arithmetic number, because the mean of its divisors is an integer number (45487680).

Almost surely, 2^506549121 is an apocalyptic number.

It is an amenable number.

506549121 is a deficient number, since it is larger than the sum of its proper divisors (221253759).

506549121 is a wasteful number, since it uses less digits than its factorization.

506549121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8056.

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 506549121 is about 22506.6461517482. The cubic root of 506549121 is about 797.1508656082.

The spelling of 506549121 in words is "five hundred six million, five hundred forty-nine thousand, one hundred twenty-one".