505051105000 has 80 divisors (see below), whose sum is σ = 1274360652180. Its totient is φ = 186480384000.

The previous prime is 505051104991. The next prime is 505051105003. The reversal of 505051105000 is 501150505.

It can be written as a sum of positive squares in 10 ways, for example, as 23256860004 + 481794244996 = 152502^2 + 694114^2 .

It is not an unprimeable number, because it can be changed into a prime (505051105003) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3820009 + ... + 3950008.

Almost surely, 2^505051105000 is an apocalyptic number.

505051105000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

505051105000 is an abundant number, since it is smaller than the sum of its proper divisors (769309547180).

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

505051105000 is a wasteful number, since it uses less digits than its factorization.

505051105000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7770056 (or 7770037 counting only the distinct ones).

The product of its (nonzero) digits is 625, while the sum is 22.

Adding to 505051105000 its reverse (501150505), we get a palindrome (505552255505).

The spelling of 505051105000 in words is "five hundred five billion, fifty-one million, one hundred five thousand".