505250043540 has 96 divisors (see below), whose sum is σ = 1569467128320. Its totient is φ = 120408835200.

The previous prime is 505250043523. The next prime is 505250043553. The reversal of 505250043540 is 45340052505.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6448606 + ... + 6526485.

It is an arithmetic number, because the mean of its divisors is an integer number (16348615920).

Almost surely, 2^505250043540 is an apocalyptic number.

It is an amenable number.

505250043540 is an abundant number, since it is smaller than the sum of its proper divisors (1064217084780).

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

505250043540 is a wasteful number, since it uses less digits than its factorization.

505250043540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12975173 (or 12975171 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 33.

The spelling of 505250043540 in words is "five hundred five billion, two hundred fifty million, forty-three thousand, five hundred forty".