498574561 has 2 divisors, whose sum is σ = 498574562. Its totient is φ = 498574560.

The previous prime is 498574511. The next prime is 498574577. The reversal of 498574561 is 165475894.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 496442961 + 2131600 = 22281^2 + 1460^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-498574561 is a prime.

It is not a weakly prime, because it can be changed into another prime (498574501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249287280 + 249287281.

It is an arithmetic number, because the mean of its divisors is an integer number (249287281).

Almost surely, 2^498574561 is an apocalyptic number.

It is an amenable number.

498574561 is a deficient number, since it is larger than the sum of its proper divisors (1).

498574561 is an equidigital number, since it uses as much as digits as its factorization.

498574561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1209600, while the sum is 49.

The square root of 498574561 is about 22328.7832404724. The cubic root of 498574561 is about 792.9455603012.

The spelling of 498574561 in words is "four hundred ninety-eight million, five hundred seventy-four thousand, five hundred sixty-one".