545781100 has 18 divisors (see below), whose sum is σ = 1184345204. Its totient is φ = 218312400.

The previous prime is 545781097. The next prime is 545781109. The reversal of 545781100 is 1187545.

545781100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (545781109) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2728806 + ... + 2729005.

Almost surely, 2^545781100 is an apocalyptic number.

545781100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

545781100 is an abundant number, since it is smaller than the sum of its proper divisors (638564104).

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

545781100 is a wasteful number, since it uses less digits than its factorization.

545781100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5457825 (or 5457818 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 31.

The square root of 545781100 is about 23361.9583939361. The cubic root of 545781100 is about 817.2209611055.

The spelling of 545781100 in words is "five hundred forty-five million, seven hundred eighty-one thousand, one hundred".