506666604 has 96 divisors (see below), whose sum is σ = 1267402752. Its totient is φ = 157248000.

The previous prime is 506666581. The next prime is 506666651. The reversal of 506666604 is 406666605.

It is a super-2 number, since 2×506666604² = 513422095217785632, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1802944 + ... + 1803224.

It is an arithmetic number, because the mean of its divisors is an integer number (13202112).

Almost surely, 2^506666604 is an apocalyptic number.

It is an amenable number.

506666604 is an abundant number, since it is smaller than the sum of its proper divisors (760736148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

506666604 is a wasteful number, since it uses less digits than its factorization.

506666604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487 (or 485 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 39.

The square root of 506666604 is about 22509.2559628256. The cubic root of 506666604 is about 797.2124880860.

Subtracting from 506666604 its reverse (406666605), we obtain a palindrome (99999999).

The spelling of 506666604 in words is "five hundred six million, six hundred sixty-six thousand, six hundred four".