497910557 has 2 divisors, whose sum is σ = 497910558. Its totient is φ = 497910556.

The previous prime is 497910529. The next prime is 497910559. The reversal of 497910557 is 755019794.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 483516121 + 14394436 = 21989^2 + 3794^2 .

It is a cyclic number.

It is not a de Polignac number, because 497910557 - 2¹⁶ = 497845021 is a prime.

Together with 497910559, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (497910559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248955278 + 248955279.

It is an arithmetic number, because the mean of its divisors is an integer number (248955279).

Almost surely, 2^497910557 is an apocalyptic number.

It is an amenable number.

497910557 is a deficient number, since it is larger than the sum of its proper divisors (1).

497910557 is an equidigital number, since it uses as much as digits as its factorization.

497910557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 396900, while the sum is 47.

The square root of 497910557 is about 22313.9094960968. The cubic root of 497910557 is about 792.5933876753.

The spelling of 497910557 in words is "four hundred ninety-seven million, nine hundred ten thousand, five hundred fifty-seven".