505052250504 has 128 divisors (see below), whose sum is σ = 1352823171840. Its totient is φ = 156566126592.

The previous prime is 505052250473. The next prime is 505052250517. The reversal of 505052250504 is 405052250505.

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, 25833357 + ... + 25852899.

It is an arithmetic number, because the mean of its divisors is an integer number (10568931030).

Almost surely, 2^505052250504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 505052250504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (676411585920).

505052250504 is an abundant number, since it is smaller than the sum of its proper divisors (847770921336).

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

505052250504 is a wasteful number, since it uses less digits than its factorization.

505052250504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20319 (or 20315 counting only the distinct ones).

The product of its (nonzero) digits is 50000, while the sum is 33.

Subtracting from 505052250504 its reverse (405052250505), we obtain a palindrome (99999999999).

The spelling of 505052250504 in words is "five hundred five billion, fifty-two million, two hundred fifty thousand, five hundred four".