497521 has 2 divisors, whose sum is σ = 497522. Its totient is φ = 497520.

The previous prime is 497509. The next prime is 497537. The reversal of 497521 is 125794.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 404496 + 93025 = 636^2 + 305^2 .

It is a cyclic number.

It is not a de Polignac number, because 497521 - 2¹³ = 489329 is a prime.

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 497521.

It is not a weakly prime, because it can be changed into another prime (497501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248760 + 248761.

It is an arithmetic number, because the mean of its divisors is an integer number (248761).

2⁴⁹⁷⁵²¹ is an apocalyptic number.

It is an amenable number.

497521 is a deficient number, since it is larger than the sum of its proper divisors (1).

497521 is an equidigital number, since it uses as much as digits as its factorization.

497521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2520, while the sum is 28.

The square root of 497521 is about 705.3516853315. The cubic root of 497521 is about 79.2386629751.

The spelling of 497521 in words is "four hundred ninety-seven thousand, five hundred twenty-one".