45518889 has 32 divisors (see below), whose sum is σ = 70318080. Its totient is φ = 25952832.

The previous prime is 45518887. The next prime is 45518923. The reversal of 45518889 is 98881554.

It is not a de Polignac number, because 45518889 - 2¹ = 45518887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45518887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34174 + ... + 35480.

It is an arithmetic number, because the mean of its divisors is an integer number (2197440).

Almost surely, 2^45518889 is an apocalyptic number.

It is an amenable number.

45518889 is a deficient number, since it is larger than the sum of its proper divisors (24799191).

45518889 is a wasteful number, since it uses less digits than its factorization.

45518889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1389.

The product of its digits is 460800, while the sum is 48.

The square root of 45518889 is about 6746.7687821653. The cubic root of 45518889 is about 357.0512445172.

The spelling of 45518889 in words is "forty-five million, five hundred eighteen thousand, eight hundred eighty-nine".