505601051100 has 72 divisors (see below), whose sum is σ = 1548923706288. Its totient is φ = 126895948800.

The previous prime is 505601051093. The next prime is 505601051171. The reversal of 505601051100 is 1150106505.

It is a super-2 number, since 2×505601051100² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49563631 + ... + 49573830.

It is an arithmetic number, because the mean of its divisors is an integer number (21512829254).

Almost surely, 2^505601051100 is an apocalyptic number.

505601051100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

505601051100 is an abundant number, since it is smaller than the sum of its proper divisors (1043322655188).

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

505601051100 is a wasteful number, since it uses less digits than its factorization.

505601051100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99137495 (or 99137488 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 24.

Adding to 505601051100 its reverse (1150106505), we get a palindrome (506751157605).

The spelling of 505601051100 in words is "five hundred five billion, six hundred one million, fifty-one thousand, one hundred".