275303493 has 6 divisors (see below), whose sum is σ = 397660614. Its totient is φ = 183535656.

The previous prime is 275303473. The next prime is 275303503. The reversal of 275303493 is 394303572.

275303493 is a `hidden beast` number, since 2 + 7 + 530 + 34 + 93 = 666.

It can be written as a sum of positive squares in only one way, i.e., 149010849 + 126292644 = 12207^2 + 11238^2 .

It is not a de Polignac number, because 275303493 - 2⁶ = 275303429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275303453) 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 5 ways as a sum of consecutive naturals, for example, 15294630 + ... + 15294647.

It is an arithmetic number, because the mean of its divisors is an integer number (66276769).

Almost surely, 2^275303493 is an apocalyptic number.

It is an amenable number.

275303493 is a deficient number, since it is larger than the sum of its proper divisors (122357121).

275303493 is a wasteful number, since it uses less digits than its factorization.

275303493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30589283 (or 30589280 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 36.

The square root of 275303493 is about 16592.2720867276. The cubic root of 275303493 is about 650.5348599609.

The spelling of 275303493 in words is "two hundred seventy-five million, three hundred three thousand, four hundred ninety-three".