505853994 has 16 divisors (see below), whose sum is σ = 1012564800. Its totient is φ = 168475200.

The previous prime is 505853987. The next prime is 505854049. The reversal of 505853994 is 499358505.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27894 + ... + 42305.

It is an arithmetic number, because the mean of its divisors is an integer number (63285300).

Almost surely, 2^505853994 is an apocalyptic number.

505853994 is an abundant number, since it is smaller than the sum of its proper divisors (506710806).

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

505853994 is a wasteful number, since it uses less digits than its factorization.

505853994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71405.

The product of its (nonzero) digits is 972000, while the sum is 48.

The square root of 505853994 is about 22491.1981450522. The cubic root of 505853994 is about 796.7860607421.

The spelling of 505853994 in words is "five hundred five million, eight hundred fifty-three thousand, nine hundred ninety-four".