505555450120 has 32 divisors (see below), whose sum is σ = 1299999729600. Its totient is φ = 173333297088.

The previous prime is 505555450073. The next prime is 505555450157. The reversal of 505555450120 is 21054555505.

It is a self number, because there is not a number n which added to its sum of digits gives 505555450120.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 902777310 + ... + 902777869.

It is an arithmetic number, because the mean of its divisors is an integer number (40624991550).

Almost surely, 2^505555450120 is an apocalyptic number.

It is an amenable number.

505555450120 is an abundant number, since it is smaller than the sum of its proper divisors (794444279480).

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

505555450120 is a wasteful number, since it uses less digits than its factorization.

505555450120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1805555197 (or 1805555193 counting only the distinct ones).

The product of its (nonzero) digits is 125000, while the sum is 37.

The spelling of 505555450120 in words is "five hundred five billion, five hundred fifty-five million, four hundred fifty thousand, one hundred twenty".