545910100 has 18 divisors (see below), whose sum is σ = 1184625134. Its totient is φ = 218364000.

The previous prime is 545910089. The next prime is 545910107. The reversal of 545910100 is 1019545.

It can be written as a sum of positive squares in 3 ways, for example, as 14884164 + 531025936 = 3858^2 + 23044^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545910107) 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, 2729451 + ... + 2729650.

Almost surely, 2^545910100 is an apocalyptic number.

545910100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

545910100 is an abundant number, since it is smaller than the sum of its proper divisors (638715034).

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

545910100 is a wasteful number, since it uses less digits than its factorization.

545910100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5459115 (or 5459108 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 545910100 is about 23364.7191294909. The cubic root of 545910100 is about 817.2853417393.

Adding to 545910100 its reverse (1019545), we get a palindrome (546929645).

The spelling of 545910100 in words is "five hundred forty-five million, nine hundred ten thousand, one hundred".