505750044 has 12 divisors (see below), whose sum is σ = 1180083464. Its totient is φ = 168583344.

The previous prime is 505749991. The next prime is 505750061. The reversal of 505750044 is 440057505.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 505749993 and 505750020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21072907 + ... + 21072930.

Almost surely, 2^505750044 is an apocalyptic number.

It is an amenable number.

505750044 is an abundant number, since it is smaller than the sum of its proper divisors (674333420).

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

505750044 is a wasteful number, since it uses less digits than its factorization.

505750044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42145844 (or 42145842 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 30.

The square root of 505750044 is about 22488.8871223100. The cubic root of 505750044 is about 796.7314787309.

The spelling of 505750044 in words is "five hundred five million, seven hundred fifty thousand, forty-four".