4545499550 has 12 divisors (see below), whose sum is σ = 8454629256. Its totient is φ = 1818199800.

The previous prime is 4545499501. The next prime is 4545499571. The reversal of 4545499550 is 559945454.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (50), and also a Moran number because the ratio is a prime number: 90909991 = 4545499550 / (4 + 5 + 4 + 5 + 4 + 9 + 9 + 5 + 5 + 0).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45454946 + ... + 45455045.

It is an arithmetic number, because the mean of its divisors is an integer number (704552438).

Almost surely, 2^4545499550 is an apocalyptic number.

4545499550 is a deficient number, since it is larger than the sum of its proper divisors (3909129706).

4545499550 is a wasteful number, since it uses less digits than its factorization.

4545499550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90910003 (or 90909998 counting only the distinct ones).

The product of its (nonzero) digits is 3240000, while the sum is 50.

The square root of 4545499550 is about 67420.3200081400. The cubic root of 4545499550 is about 1656.5092793565.

The spelling of 4545499550 in words is "four billion, five hundred forty-five million, four hundred ninety-nine thousand, five hundred fifty".