45155455 has 4 divisors (see below), whose sum is σ = 54186552. Its totient is φ = 36124360.

The previous prime is 45155449. The next prime is 45155459. The reversal of 45155455 is 55455154.

45155455 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55455154 = 2 ⋅27727577.

It is not a de Polignac number, because 45155455 - 2⁵ = 45155423 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45155455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45155459) 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 3 ways as a sum of consecutive naturals, for example, 4515541 + ... + 4515550.

It is an arithmetic number, because the mean of its divisors is an integer number (13546638).

Almost surely, 2^45155455 is an apocalyptic number.

45155455 is a deficient number, since it is larger than the sum of its proper divisors (9031097).

45155455 is an equidigital number, since it uses as much as digits as its factorization.

45155455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9031096.

The product of its digits is 50000, while the sum is 34.

The square root of 45155455 is about 6719.7808744036. The cubic root of 45155455 is about 356.0984425607.

The spelling of 45155455 in words is "forty-five million, one hundred fifty-five thousand, four hundred fifty-five".