45555455 has 16 divisors (see below), whose sum is σ = 60908544. Its totient is φ = 32424480.

The previous prime is 45555449. The next prime is 45555457. The reversal of 45555455 is 55455554.

It is not a de Polignac number, because 45555455 - 2¹⁶ = 45489919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45555457) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 6227 + ... + 11396.

It is an arithmetic number, because the mean of its divisors is an integer number (3806784).

Almost surely, 2^45555455 is an apocalyptic number.

45555455 is a deficient number, since it is larger than the sum of its proper divisors (15353089).

45555455 is a wasteful number, since it uses less digits than its factorization.

45555455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17686.

The product of its digits is 250000, while the sum is 38.

The square root of 45555455 is about 6749.4781279740. The cubic root of 45555455 is about 357.1468271178.

Subtracting 45555455 from its reverse (55455554), we obtain a palindrome (9900099).

The spelling of 45555455 in words is "forty-five million, five hundred fifty-five thousand, four hundred fifty-five".