275132521 has 4 divisors (see below), whose sum is σ = 289613200. Its totient is φ = 260651844.

The previous prime is 275132519. The next prime is 275132527. The reversal of 275132521 is 125231572.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 275132521 - 2¹ = 275132519 is a prime.

It is a super-2 number, since 2×275132521² = 151395808223630882, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 275132521.

It is not an unprimeable number, because it can be changed into a prime (275132527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7240311 + ... + 7240348.

It is an arithmetic number, because the mean of its divisors is an integer number (72403300).

Almost surely, 2^275132521 is an apocalyptic number.

It is an amenable number.

275132521 is a deficient number, since it is larger than the sum of its proper divisors (14480679).

275132521 is a wasteful number, since it uses less digits than its factorization.

275132521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14480678.

The product of its digits is 4200, while the sum is 28.

The square root of 275132521 is about 16587.1191290109. The cubic root of 275132521 is about 650.4001646383.

It can be divided in two parts, 275132 and 521, that added together give a triangular number (275653 = T₇₄₂).

The spelling of 275132521 in words is "two hundred seventy-five million, one hundred thirty-two thousand, five hundred twenty-one".