545345550 has 72 divisors (see below), whose sum is σ = 1551369456. Its totient is φ = 136869120.

The previous prime is 545345539. The next prime is 545345557. The reversal of 545345550 is 55543545.

545345550 is a `hidden beast` number, since 54 + 53 + 4 + 5 + 550 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545345557) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 27994 + ... + 43293.

It is an arithmetic number, because the mean of its divisors is an integer number (21546798).

Almost surely, 2^545345550 is an apocalyptic number.

545345550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

545345550 is an abundant number, since it is smaller than the sum of its proper divisors (1006023906).

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

545345550 is a wasteful number, since it uses less digits than its factorization.

545345550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71322 (or 71314 counting only the distinct ones).

The product of its (nonzero) digits is 150000, while the sum is 36.

The square root of 545345550 is about 23352.6347549907. The cubic root of 545345550 is about 817.0035141502.

The spelling of 545345550 in words is "five hundred forty-five million, three hundred forty-five thousand, five hundred fifty".