4545550 has 12 divisors (see below), whose sum is σ = 8454816. Its totient is φ = 1818200.

The previous prime is 4545521. The next prime is 4545551. The reversal of 4545550 is 555454.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4545551) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45406 + ... + 45505.

It is an arithmetic number, because the mean of its divisors is an integer number (704568).

Almost surely, 2^4545550 is an apocalyptic number.

4545550 is a deficient number, since it is larger than the sum of its proper divisors (3909266).

4545550 is a wasteful number, since it uses less digits than its factorization.

4545550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90923 (or 90918 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 28.

The square root of 4545550 is about 2132.0295495138. The cubic root of 4545550 is about 165.6515407805.

The spelling of 4545550 in words is "four million, five hundred forty-five thousand, five hundred fifty".