505055004 has 24 divisors (see below), whose sum is σ = 1181030928. Its totient is φ = 167984640.

The previous prime is 505055003. The next prime is 505055009. The reversal of 505055004 is 400550505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505055003) 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, 40117 + ... + 51180.

It is an arithmetic number, because the mean of its divisors is an integer number (49209622).

Almost surely, 2^505055004 is an apocalyptic number.

It is an amenable number.

505055004 is an abundant number, since it is smaller than the sum of its proper divisors (675975924).

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

505055004 is a wasteful number, since it uses less digits than its factorization.

505055004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91765 (or 91763 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 24.

The square root of 505055004 is about 22473.4288438591. The cubic root of 505055004 is about 796.3663351713.

The spelling of 505055004 in words is "five hundred five million, fifty-five thousand, four".