495350721 has 10 divisors (see below), whose sum is σ = 739968482. Its totient is φ = 330233760.

The previous prime is 495350699. The next prime is 495350789. The reversal of 495350721 is 127053594.

It can be written as a sum of positive squares in only one way, i.e., 420701121 + 74649600 = 20511^2 + 8640^2 .

It is not a de Polignac number, because 495350721 - 2⁵ = 495350689 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (495350021) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3057640 + ... + 3057801.

Almost surely, 2^495350721 is an apocalyptic number.

It is an amenable number.

495350721 is a deficient number, since it is larger than the sum of its proper divisors (244617761).

495350721 is an equidigital number, since it uses as much as digits as its factorization.

495350721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6115453 (or 6115444 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 495350721 is about 22256.4759339838. The cubic root of 495350721 is about 791.2327711259.

The spelling of 495350721 in words is "four hundred ninety-five million, three hundred fifty thousand, seven hundred twenty-one".