545442550 has 12 divisors (see below), whose sum is σ = 1014523236. Its totient is φ = 218177000.

The previous prime is 545442529. The next prime is 545442553. The reversal of 545442550 is 55244545.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545442553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5454376 + ... + 5454475.

It is an arithmetic number, because the mean of its divisors is an integer number (84543603).

Almost surely, 2^545442550 is an apocalyptic number.

545442550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

545442550 is a deficient number, since it is larger than the sum of its proper divisors (469080686).

545442550 is a wasteful number, since it uses less digits than its factorization.

545442550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10908863 (or 10908858 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 34.

The square root of 545442550 is about 23354.7115160946. The cubic root of 545442550 is about 817.0519511107.

The spelling of 545442550 in words is "five hundred forty-five million, four hundred forty-two thousand, five hundred fifty".