45555445 has 16 divisors (see below), whose sum is σ = 61971840. Its totient is φ = 31869504.

The previous prime is 45555437. The next prime is 45555449. The reversal of 45555445 is 54455554.

It is a cyclic number.

It is not a de Polignac number, because 45555445 - 2³ = 45555437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45555449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17209 + ... + 19678.

It is an arithmetic number, because the mean of its divisors is an integer number (3873240).

Almost surely, 2^45555445 is an apocalyptic number.

It is an amenable number.

45555445 is a deficient number, since it is larger than the sum of its proper divisors (16416395).

45555445 is a wasteful number, since it uses less digits than its factorization.

45555445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36924.

The product of its digits is 200000, while the sum is 37.

The square root of 45555445 is about 6749.4773871760. The cubic root of 45555445 is about 357.1468009850.

It can be divided in two parts, 4555 and 5445, that added together give a 4-th power (10000 = 10⁴).

The spelling of 45555445 in words is "forty-five million, five hundred fifty-five thousand, four hundred forty-five".