502640505 has 32 divisors (see below), whose sum is σ = 932440320. Its totient is φ = 256417920.

The previous prime is 502640503. The next prime is 502640521. The reversal of 502640505 is 505046205.

It is not a de Polignac number, because 502640505 - 2¹ = 502640503 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (502640503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77836 + ... + 84045.

It is an arithmetic number, because the mean of its divisors is an integer number (29138760).

Almost surely, 2^502640505 is an apocalyptic number.

It is an amenable number.

502640505 is a deficient number, since it is larger than the sum of its proper divisors (429799815).

502640505 is a wasteful number, since it uses less digits than its factorization.

502640505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161918 (or 161912 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 502640505 is about 22419.6455145928. The cubic root of 502640505 is about 795.0952538055.

The spelling of 502640505 in words is "five hundred two million, six hundred forty thousand, five hundred five".