505535504 has 10 divisors (see below), whose sum is σ = 979475070. Its totient is φ = 252767744.

The previous prime is 505535501. The next prime is 505535509. The reversal of 505535504 is 405535505.

It can be written as a sum of positive squares in only one way, i.e., 434639104 + 70896400 = 20848^2 + 8420^2 .

It is a super-2 number, since 2×505535504² = 511132291609068032, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (505535501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15797969 + ... + 15798000.

It is an arithmetic number, because the mean of its divisors is an integer number (97947507).

Almost surely, 2^505535504 is an apocalyptic number.

It is an amenable number.

505535504 is a deficient number, since it is larger than the sum of its proper divisors (473939566).

505535504 is a wasteful number, since it uses less digits than its factorization.

505535504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31595977 (or 31595971 counting only the distinct ones).

The product of its (nonzero) digits is 37500, while the sum is 32.

The square root of 505535504 is about 22484.1167049097. The cubic root of 505535504 is about 796.6188045295.

Subtracting from 505535504 its reverse (405535505), we obtain a palindrome (99999999).

The spelling of 505535504 in words is "five hundred five million, five hundred thirty-five thousand, five hundred four".