495049993 has 2 divisors, whose sum is σ = 495049994. Its totient is φ = 495049992.

The previous prime is 495049969. The next prime is 495050009. The reversal of 495049993 is 399940594.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 490711104 + 4338889 = 22152^2 + 2083^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-495049993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 495049993.

It is not a weakly prime, because it can be changed into another prime (495049913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247524996 + 247524997.

It is an arithmetic number, because the mean of its divisors is an integer number (247524997).

Almost surely, 2^495049993 is an apocalyptic number.

It is an amenable number.

495049993 is a deficient number, since it is larger than the sum of its proper divisors (1).

495049993 is an equidigital number, since it uses as much as digits as its factorization.

495049993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1574640, while the sum is 52.

The square root of 495049993 is about 22249.7189420451. The cubic root of 495049993 is about 791.0726192663.

The spelling of 495049993 in words is "four hundred ninety-five million, forty-nine thousand, nine hundred ninety-three".