499655520 has 768 divisors, whose sum is σ = 2275983360. Its totient is φ = 99532800.

The previous prime is 499655503. The next prime is 499655531. The reversal of 499655520 is 25556994.

It is a happy number.

499655520 is a `hidden beast` number, since 4 + 9 + 96 + 5 + 552 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 12186700 + ... + 12186740.

It is an arithmetic number, because the mean of its divisors is an integer number (2963520).

Almost surely, 2^499655520 is an apocalyptic number.

499655520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 499655520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1137991680).

499655520 is an abundant number, since it is smaller than the sum of its proper divisors (1776327840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

499655520 is a wasteful number, since it uses less digits than its factorization.

499655520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 486000, while the sum is 45.

The square root of 499655520 is about 22352.9756408403. The cubic root of 499655520 is about 793.5182081363.

It can be divided in two parts, 4996 and 55520, that added together give a square (60516 = 246²).

The spelling of 499655520 in words is "four hundred ninety-nine million, six hundred fifty-five thousand, five hundred twenty".