495277281 has 16 divisors (see below), whose sum is σ = 734670720. Its totient is φ = 329767920.

The previous prime is 495277261. The next prime is 495277291. The reversal of 495277281 is 182772594.

It is a happy number.

495277281 is a `hidden beast` number, since 49 + 527 + 7 + 2 + 81 = 666.

It is not a de Polignac number, because 495277281 - 2⁶ = 495277217 is a prime.

It is a super-2 number, since 2×495277281² = 490599170149505922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (495277241) 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, 10996 + ... + 33338.

It is an arithmetic number, because the mean of its divisors is an integer number (45916920).

Almost surely, 2^495277281 is an apocalyptic number.

It is an amenable number.

495277281 is a deficient number, since it is larger than the sum of its proper divisors (239393439).

495277281 is a wasteful number, since it uses less digits than its factorization.

495277281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23173 (or 23167 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The square root of 495277281 is about 22254.8260159454. The cubic root of 495277281 is about 791.1936668414.

The spelling of 495277281 in words is "four hundred ninety-five million, two hundred seventy-seven thousand, two hundred eighty-one".