275500100 has 72 divisors (see below), whose sum is σ = 621793536. Its totient is φ = 105840000.

The previous prime is 275500061. The next prime is 275500103. The reversal of 275500100 is 1005572.

275500100 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (275500103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 560855 + ... + 561345.

Almost surely, 2^275500100 is an apocalyptic number.

275500100 is a gapful number since it is divisible by the number (20) 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 275500100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (310896768).

275500100 is an abundant number, since it is smaller than the sum of its proper divisors (346293436).

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

275500100 is a wasteful number, since it uses less digits than its factorization.

275500100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717 (or 710 counting only the distinct ones).

The product of its (nonzero) digits is 350, while the sum is 20.

The square root of 275500100 is about 16598.1956850737. The cubic root of 275500100 is about 650.6896821555.

Adding to 275500100 its reverse (1005572), we get a palindrome (276505672).

The spelling of 275500100 in words is "two hundred seventy-five million, five hundred thousand, one hundred".