499478550 has 48 divisors (see below), whose sum is σ = 1245618192. Its totient is φ = 132451200.

The previous prime is 499478543. The next prime is 499478579. The reversal of 499478550 is 55874994.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 499478493 and 499478502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17952 + ... + 36348.

It is an arithmetic number, because the mean of its divisors is an integer number (25950379).

Almost surely, 2^499478550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 499478550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (622809096).

499478550 is an abundant number, since it is smaller than the sum of its proper divisors (746139642).

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

499478550 is a wasteful number, since it uses less digits than its factorization.

499478550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18593 (or 18588 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 51.

The square root of 499478550 is about 22349.0167568956. The cubic root of 499478550 is about 793.4245132511.

The spelling of 499478550 in words is "four hundred ninety-nine million, four hundred seventy-eight thousand, five hundred fifty".