275011247 has 4 divisors (see below), whose sum is σ = 314298576. Its totient is φ = 235723920.

The previous prime is 275011229. The next prime is 275011249. The reversal of 275011247 is 742110572.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 275011247 - 2⁸ = 275010991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275011249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19643654 + ... + 19643667.

It is an arithmetic number, because the mean of its divisors is an integer number (78574644).

Almost surely, 2^275011247 is an apocalyptic number.

275011247 is a deficient number, since it is larger than the sum of its proper divisors (39287329).

275011247 is an equidigital number, since it uses as much as digits as its factorization.

275011247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39287328.

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 275011247 is about 16583.4630581191. The cubic root of 275011247 is about 650.3045886091.

The spelling of 275011247 in words is "two hundred seventy-five million, eleven thousand, two hundred forty-seven".