497774549 has 2 divisors, whose sum is σ = 497774550. Its totient is φ = 497774548.

The previous prime is 497774527. The next prime is 497774573. The reversal of 497774549 is 945477794.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 471324100 + 26450449 = 21710^2 + 5143^2 .

It is a cyclic number.

It is not a de Polignac number, because 497774549 - 2¹⁶ = 497709013 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 497774494 and 497774503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (497777549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248887274 + 248887275.

It is an arithmetic number, because the mean of its divisors is an integer number (248887275).

Almost surely, 2^497774549 is an apocalyptic number.

It is an amenable number.

497774549 is a deficient number, since it is larger than the sum of its proper divisors (1).

497774549 is an equidigital number, since it uses as much as digits as its factorization.

497774549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8890560, while the sum is 56.

The square root of 497774549 is about 22310.8616821493. The cubic root of 497774549 is about 792.5212134954.

It can be divided in two parts, 4977745 and 49, that added together give a palindrome (4977794).

The spelling of 497774549 in words is "four hundred ninety-seven million, seven hundred seventy-four thousand, five hundred forty-nine".