505052042004 has 18 divisors (see below), whose sum is σ = 1276659328490. Its totient is φ = 168350680656.

The previous prime is 505052042003. The next prime is 505052042021. The reversal of 505052042004 is 400240250505.

505052042004 is a `hidden beast` number, since 50 + 50 + 520 + 42 + 0 + 0 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 504625536900 + 426505104 = 710370^2 + 20652^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505052042003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7014611659 + ... + 7014611730.

Almost surely, 2^505052042004 is an apocalyptic number.

It is an amenable number.

505052042004 is an abundant number, since it is smaller than the sum of its proper divisors (771607286486).

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

505052042004 is a wasteful number, since it uses less digits than its factorization.

505052042004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14029223399 (or 14029223394 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

Adding to 505052042004 its reverse (400240250505), we get a palindrome (905292292509).

The spelling of 505052042004 in words is "five hundred five billion, fifty-two million, forty-two thousand, four".