505100500 has 24 divisors (see below), whose sum is σ = 1103140584. Its totient is φ = 202040000.

The previous prime is 505100467. The next prime is 505100521. The reversal of 505100500 is 5001505.

It can be written as a sum of positive squares in 4 ways, for example, as 3161284 + 501939216 = 1778^2 + 22404^2 .

It is a congruent 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, 504601 + ... + 505600.

It is an arithmetic number, because the mean of its divisors is an integer number (45964191).

Almost surely, 2^505100500 is an apocalyptic number.

505100500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

505100500 is an abundant number, since it is smaller than the sum of its proper divisors (598040084).

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

505100500 is a wasteful number, since it uses less digits than its factorization.

505100500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010220 (or 1010208 counting only the distinct ones).

The product of its (nonzero) digits is 125, while the sum is 16.

The square root of 505100500 is about 22474.4410386554. The cubic root of 505100500 is about 796.3902470190.

The spelling of 505100500 in words is "five hundred five million, one hundred thousand, five hundred".