505542552100 has 36 divisors (see below), whose sum is σ = 1098298704384. Its totient is φ = 201982667680.

The previous prime is 505542552089. The next prime is 505542552121. The reversal of 505542552100 is 1255245505.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2842684 + ... + 3015283.

It is an arithmetic number, because the mean of its divisors is an integer number (30508297344).

Almost surely, 2^505542552100 is an apocalyptic number.

505542552100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

505542552100 is an abundant number, since it is smaller than the sum of its proper divisors (592756152284).

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

505542552100 is a wasteful number, since it uses less digits than its factorization.

505542552100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5858844 (or 5858837 counting only the distinct ones).

The product of its (nonzero) digits is 50000, while the sum is 34.

Adding to 505542552100 its reverse (1255245505), we get a palindrome (506797797605).

The spelling of 505542552100 in words is "five hundred five billion, five hundred forty-two million, five hundred fifty-two thousand, one hundred".