498997505 has 8 divisors (see below), whose sum is σ = 600000000. Its totient is φ = 398396016.

The previous prime is 498997423. The next prime is 498997523. The reversal of 498997505 is 505799894.

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

It is a cyclic number.

It is not a de Polignac number, because 498997505 - 2¹⁰ = 498996481 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97505 + ... + 102494.

It is an arithmetic number, because the mean of its divisors is an integer number (75000000).

Almost surely, 2^498997505 is an apocalyptic number.

It is an amenable number.

498997505 is a deficient number, since it is larger than the sum of its proper divisors (101002495).

498997505 is a wasteful number, since it uses less digits than its factorization.

498997505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200503.

The product of its (nonzero) digits is 4082400, while the sum is 56.

The square root of 498997505 is about 22338.2520578491. The cubic root of 498997505 is about 793.1697171979.

The spelling of 498997505 in words is "four hundred ninety-eight million, nine hundred ninety-seven thousand, five hundred five".