4515550 has 24 divisors (see below), whose sum is σ = 9046296. Its totient is φ = 1667040.

The previous prime is 4515541. The next prime is 4515551. The reversal of 4515550 is 555154.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4515551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2824 + ... + 4123.

It is an arithmetic number, because the mean of its divisors is an integer number (376929).

Almost surely, 2^4515550 is an apocalyptic number.

4515550 is an abundant number, since it is smaller than the sum of its proper divisors (4530746).

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

4515550 is a wasteful number, since it uses less digits than its factorization.

4515550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6972 (or 6967 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 25.

The square root of 4515550 is about 2124.9823528679. The cubic root of 4515550 is about 165.2863103714.

The spelling of 4515550 in words is "four million, five hundred fifteen thousand, five hundred fifty".