545217100 has 18 divisors (see below), whose sum is σ = 1183121324. Its totient is φ = 218086800.

The previous prime is 545217083. The next prime is 545217107. The reversal of 545217100 is 1712545.

545217100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×545217100² = 594523372264820000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (545217107) 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, 2725986 + ... + 2726185.

Almost surely, 2^545217100 is an apocalyptic number.

545217100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

545217100 is an abundant number, since it is smaller than the sum of its proper divisors (637904224).

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

545217100 is a wasteful number, since it uses less digits than its factorization.

545217100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5452185 (or 5452178 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 545217100 is about 23349.8843680220. The cubic root of 545217100 is about 816.9393637890.

Adding to 545217100 its reverse (1712545), we get a palindrome (546929645).

The spelling of 545217100 in words is "five hundred forty-five million, two hundred seventeen thousand, one hundred".