501105005500 has 48 divisors (see below), whose sum is σ = 1193905466208. Its totient is φ = 182220000000.

The previous prime is 501105005461. The next prime is 501105005503. The reversal of 501105005500 is 5500501105.

It is a super-3 number, since 3×501105005500³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501105005503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45549501 + ... + 45560500.

It is an arithmetic number, because the mean of its divisors is an integer number (24873030546).

Almost surely, 2^501105005500 is an apocalyptic number.

501105005500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

501105005500 is an abundant number, since it is smaller than the sum of its proper divisors (692800460708).

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

501105005500 is a wasteful number, since it uses less digits than its factorization.

501105005500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91110031 (or 91110019 counting only the distinct ones).

The product of its (nonzero) digits is 625, while the sum is 22.

Adding to 501105005500 its reverse (5500501105), we get a palindrome (506605506605).

The spelling of 501105005500 in words is "five hundred one billion, one hundred five million, five thousand, five hundred".