505626604 has 24 divisors (see below), whose sum is σ = 1021271328. Its totient is φ = 214550400.

The previous prime is 505626601. The next prime is 505626619. The reversal of 505626604 is 406626505.

It is a self number, because there is not a number n which added to its sum of digits gives 505626604.

It is not an unprimeable number, because it can be changed into a prime (505626601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86569 + ... + 92224.

It is an arithmetic number, because the mean of its divisors is an integer number (42552972).

Almost surely, 2^505626604 is an apocalyptic number.

It is an amenable number.

505626604 is an abundant number, since it is smaller than the sum of its proper divisors (515644724).

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

505626604 is a wasteful number, since it uses less digits than its factorization.

505626604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178905 (or 178903 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 505626604 is about 22486.1424882082. The cubic root of 505626604 is about 796.6666532060. Note that the first 4 decimals are identical.

Subtracting from 505626604 its reverse (406626505), we obtain a palindrome (99000099).

The spelling of 505626604 in words is "five hundred five million, six hundred twenty-six thousand, six hundred four".