275491497 has 16 divisors (see below), whose sum is σ = 378380288. Its totient is φ = 178189200.

The previous prime is 275491483. The next prime is 275491499. The reversal of 275491497 is 794194572.

It is not a de Polignac number, because 275491497 - 2⁷ = 275491369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (275491499) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12408 + ... + 26550.

It is an arithmetic number, because the mean of its divisors is an integer number (23648768).

Almost surely, 2^275491497 is an apocalyptic number.

It is an amenable number.

275491497 is a deficient number, since it is larger than the sum of its proper divisors (102888791).

275491497 is a wasteful number, since it uses less digits than its factorization.

275491497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14340.

The product of its digits is 635040, while the sum is 48.

The square root of 275491497 is about 16597.9365283760. The cubic root of 275491497 is about 650.6829090888.

The spelling of 275491497 in words is "two hundred seventy-five million, four hundred ninety-one thousand, four hundred ninety-seven".