5645603100 has 144 divisors (see below), whose sum is σ = 17412385536. Its totient is φ = 1407360000.

The previous prime is 5645603053. The next prime is 5645603137. The reversal of 5645603100 is 13065465.

It is a super-3 number, since 3×5645603100³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 766435 + ... + 773765.

It is an arithmetic number, because the mean of its divisors is an integer number (120919344).

Almost surely, 2^5645603100 is an apocalyptic number.

5645603100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5645603100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8706192768).

5645603100 is an abundant number, since it is smaller than the sum of its proper divisors (11766782436).

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

5645603100 is a wasteful number, since it uses less digits than its factorization.

5645603100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7516 (or 7509 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 5645603100 is about 75137.2284556730. The cubic root of 5645603100 is about 1780.6153555643.

Adding to 5645603100 its reverse (13065465), we get a palindrome (5658668565).

The spelling of 5645603100 in words is "five billion, six hundred forty-five million, six hundred three thousand, one hundred".