20185050504 has 32 divisors (see below), whose sum is σ = 53431017120. Its totient is φ = 6332564736.

The previous prime is 20185050469. The next prime is 20185050511. The reversal of 20185050504 is 40505058102.

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, 24736174 + ... + 24736989.

It is an arithmetic number, because the mean of its divisors is an integer number (1669719285).

Almost surely, 2^20185050504 is an apocalyptic number.

20185050504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20185050504 is an abundant number, since it is smaller than the sum of its proper divisors (33245966616).

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

20185050504 is a wasteful number, since it uses less digits than its factorization.

20185050504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49473189 (or 49473185 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 30.

The spelling of 20185050504 in words is "twenty billion, one hundred eighty-five million, fifty thousand, five hundred four".