275506620 has 48 divisors (see below), whose sum is σ = 780101280. Its totient is φ = 72641536.

The previous prime is 275506619. The next prime is 275506691. The reversal of 275506620 is 26605572.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20457 + ... + 31136.

It is an arithmetic number, because the mean of its divisors is an integer number (16252110).

Almost surely, 2^275506620 is an apocalyptic number.

275506620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

275506620 is an abundant number, since it is smaller than the sum of its proper divisors (504594660).

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

275506620 is a wasteful number, since it uses less digits than its factorization.

275506620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51694 (or 51692 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 275506620 is about 16598.3920908020. The cubic root of 275506620 is about 650.6948152005.

The spelling of 275506620 in words is "two hundred seventy-five million, five hundred six thousand, six hundred twenty".