499949550 has 96 divisors (see below), whose sum is σ = 1415013600. Its totient is φ = 129703680.

The previous prime is 499949509. The next prime is 499949561. The reversal of 499949550 is 55949994.

499949550 is a `hidden beast` number, since 49 + 9 + 9 + 49 + 550 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 44946 + ... + 54954.

It is an arithmetic number, because the mean of its divisors is an integer number (14739725).

Almost surely, 2^499949550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 499949550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (707506800).

499949550 is an abundant number, since it is smaller than the sum of its proper divisors (915064050).

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

499949550 is a wasteful number, since it uses less digits than its factorization.

499949550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10067 (or 10056 counting only the distinct ones).

The product of its (nonzero) digits is 2624400, while the sum is 54.

The square root of 499949550 is about 22359.5516502456. The cubic root of 499949550 is about 793.6738302919.

The spelling of 499949550 in words is "four hundred ninety-nine million, nine hundred forty-nine thousand, five hundred fifty".