505144052500 has 30 divisors (see below), whose sum is σ = 1104649019474. Its totient is φ = 202057620000.

The previous prime is 505144052477. The next prime is 505144052551. The reversal of 505144052500 is 5250441505.

It can be written as a sum of positive squares in 5 ways, for example, as 140989736196 + 364154316304 = 375486^2 + 603452^2 .

It is a super-2 number, since 2×505144052500² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 101026311 + ... + 101031310.

Almost surely, 2^505144052500 is an apocalyptic number.

505144052500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

505144052500 is an abundant number, since it is smaller than the sum of its proper divisors (599504966974).

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

505144052500 is a wasteful number, since it uses less digits than its factorization.

505144052500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202057645 (or 202057628 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 31.

It can be divided in two parts, 50514 and 4052500, that added together give a palindrome (4103014).

The spelling of 505144052500 in words is "five hundred five billion, one hundred forty-four million, fifty-two thousand, five hundred".