275207620 has 24 divisors (see below), whose sum is σ = 580469400. Its totient is φ = 109600512.

The previous prime is 275207599. The next prime is 275207687. The reversal of 275207620 is 26702572.

It can be written as a sum of positive squares in 4 ways, for example, as 179989056 + 95218564 = 13416^2 + 9758^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 25465 + ... + 34624.

It is an arithmetic number, because the mean of its divisors is an integer number (24186225).

Almost surely, 2^275207620 is an apocalyptic number.

275207620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

275207620 is an abundant number, since it is smaller than the sum of its proper divisors (305261780).

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

275207620 is a wasteful number, since it uses less digits than its factorization.

275207620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60327 (or 60325 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 275207620 is about 16589.3827492164. The cubic root of 275207620 is about 650.4593360736.

The spelling of 275207620 in words is "two hundred seventy-five million, two hundred seven thousand, six hundred twenty".