505240502124 has 48 divisors (see below), whose sum is σ = 1183567004928. Its totient is φ = 167746208448.

The previous prime is 505240501999. The next prime is 505240502183. The reversal of 505240502124 is 421205042505.

It is a super-2 number, since 2×505240502124² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 505240502091 and 505240502100.

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 15 ways as a sum of consecutive naturals, for example, 33436579 + ... + 33451685.

It is an arithmetic number, because the mean of its divisors is an integer number (24657645936).

Almost surely, 2^505240502124 is an apocalyptic number.

It is an amenable number.

505240502124 is an abundant number, since it is smaller than the sum of its proper divisors (678326502804).

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

505240502124 is a wasteful number, since it uses less digits than its factorization.

505240502124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25974 (or 25972 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

Adding to 505240502124 its reverse (421205042505), we get a palindrome (926445544629).

The spelling of 505240502124 in words is "five hundred five billion, two hundred forty million, five hundred two thousand, one hundred twenty-four".