545545450 has 48 divisors (see below), whose sum is σ = 1041361920. Its totient is φ = 212534720.

The previous prime is 545545433. The next prime is 545545457. The reversal of 545545450 is 54545545.

It is not an unprimeable number, because it can be changed into a prime (545545457) 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, 631719 + ... + 632581.

It is an arithmetic number, because the mean of its divisors is an integer number (21695040).

Almost surely, 2^545545450 is an apocalyptic number.

545545450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

545545450 is a deficient number, since it is larger than the sum of its proper divisors (495816470).

545545450 is a wasteful number, since it uses less digits than its factorization.

545545450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1191 (or 1186 counting only the distinct ones).

The product of its (nonzero) digits is 200000, while the sum is 37.

The square root of 545545450 is about 23356.9143938150. The cubic root of 545545450 is about 817.1033279602.

It can be divided in two parts, 5455 and 45450, that added together give a palindrome (50905).

The spelling of 545545450 in words is "five hundred forty-five million, five hundred forty-five thousand, four hundred fifty".