495491357 has 2 divisors, whose sum is σ = 495491358. Its totient is φ = 495491356.

The previous prime is 495491351. The next prime is 495491393. The reversal of 495491357 is 753194594.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 494884516 + 606841 = 22246^2 + 779^2 .

It is a cyclic number.

It is not a de Polignac number, because 495491357 - 2²⁸ = 227055901 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (495491351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247745678 + 247745679.

It is an arithmetic number, because the mean of its divisors is an integer number (247745679).

Almost surely, 2^495491357 is an apocalyptic number.

It is an amenable number.

495491357 is a deficient number, since it is larger than the sum of its proper divisors (1).

495491357 is an equidigital number, since it uses as much as digits as its factorization.

495491357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 680400, while the sum is 47.

The square root of 495491357 is about 22259.6351497503. The cubic root of 495491357 is about 791.3076441927.

The spelling of 495491357 in words is "four hundred ninety-five million, four hundred ninety-one thousand, three hundred fifty-seven".