497239533551 has 2 divisors, whose sum is σ = 497239533552. Its totient is φ = 497239533550.

The previous prime is 497239533533. The next prime is 497239533589. The reversal of 497239533551 is 155335932794.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 497239533551 - 2⁶ = 497239533487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (497239533251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248619766775 + 248619766776.

It is an arithmetic number, because the mean of its divisors is an integer number (248619766776).

Almost surely, 2^497239533551 is an apocalyptic number.

497239533551 is a deficient number, since it is larger than the sum of its proper divisors (1).

497239533551 is an equidigital number, since it uses as much as digits as its factorization.

497239533551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15309000, while the sum is 56.

The spelling of 497239533551 in words is "four hundred ninety-seven billion, two hundred thirty-nine million, five hundred thirty-three thousand, five hundred fifty-one".