505315254100 has 72 divisors (see below), whose sum is σ = 1100192083200. Its totient is φ = 201452908800.

The previous prime is 505315254061. The next prime is 505315254109. The reversal of 505315254100 is 1452513505.

It is a super-2 number, since 2×505315254100² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505315254109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41139960 + ... + 41152240.

It is an arithmetic number, because the mean of its divisors is an integer number (15280445600).

Almost surely, 2^505315254100 is an apocalyptic number.

505315254100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

505315254100 is an abundant number, since it is smaller than the sum of its proper divisors (594876829100).

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

505315254100 is a wasteful number, since it uses less digits than its factorization.

505315254100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13633 (or 13626 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 31.

Adding to 505315254100 its reverse (1452513505), we get a palindrome (506767767605).

The spelling of 505315254100 in words is "five hundred five billion, three hundred fifteen million, two hundred fifty-four thousand, one hundred".