498811521 has 8 divisors (see below), whose sum is σ = 716242240. Its totient is φ = 306960912.

The previous prime is 498811507. The next prime is 498811531. The reversal of 498811521 is 125118894.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 498811521 - 2¹⁰ = 498810497 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 12790039 = 498811521 / (4 + 9 + 8 + 8 + 1 + 1 + 5 + 2 + 1).

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 498811521.

It is not an unprimeable number, because it can be changed into a prime (498811531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6394981 + ... + 6395058.

It is an arithmetic number, because the mean of its divisors is an integer number (89530280).

Almost surely, 2^498811521 is an apocalyptic number.

It is an amenable number.

498811521 is a deficient number, since it is larger than the sum of its proper divisors (217430719).

498811521 is a wasteful number, since it uses less digits than its factorization.

498811521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12790055.

The product of its digits is 23040, while the sum is 39.

The square root of 498811521 is about 22334.0887658306. The cubic root of 498811521 is about 793.0711627922.

The spelling of 498811521 in words is "four hundred ninety-eight million, eight hundred eleven thousand, five hundred twenty-one".