495809956 has 12 divisors (see below), whose sum is σ = 886128768. Its totient is φ = 242630312.

The previous prime is 495809929. The next prime is 495809957. The reversal of 495809956 is 659908594.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 495809897 and 495809906.

It is not an unprimeable number, because it can be changed into a prime (495809957) 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, 1318456 + ... + 1318831.

It is an arithmetic number, because the mean of its divisors is an integer number (73844064).

Almost surely, 2^495809956 is an apocalyptic number.

It is an amenable number.

495809956 is a deficient number, since it is larger than the sum of its proper divisors (390318812).

495809956 is a wasteful number, since it uses less digits than its factorization.

495809956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2637338 (or 2637336 counting only the distinct ones).

The product of its (nonzero) digits is 3499200, while the sum is 55.

The square root of 495809956 is about 22266.7904287978. The cubic root of 495809956 is about 791.4772104254.

It can be divided in two parts, 49580 and 9956, that added together give a square (59536 = 244²).

The spelling of 495809956 in words is "four hundred ninety-five million, eight hundred nine thousand, nine hundred fifty-six".