545773900 has 144 divisors (see below), whose sum is σ = 1429908480. Its totient is φ = 176774400.

The previous prime is 545773883. The next prime is 545773901. The reversal of 545773900 is 9377545.

It is not an unprimeable number, because it can be changed into a prime (545773901) 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 47 ways as a sum of consecutive naturals, for example, 1754745 + ... + 1755055.

It is an arithmetic number, because the mean of its divisors is an integer number (9929920).

Almost surely, 2^545773900 is an apocalyptic number.

545773900 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

545773900 is the 19075-th pentagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 545773900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (714954240).

545773900 is an abundant number, since it is smaller than the sum of its proper divisors (884134580).

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

545773900 is a wasteful number, since it uses less digits than its factorization.

545773900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464 (or 457 counting only the distinct ones).

The product of its (nonzero) digits is 132300, while the sum is 40.

The square root of 545773900 is about 23361.8042967576. The cubic root of 545773900 is about 817.2173674689.

The spelling of 545773900 in words is "five hundred forty-five million, seven hundred seventy-three thousand, nine hundred".