45544449 has 4 divisors (see below), whose sum is σ = 60725936. Its totient is φ = 30362964.

The previous prime is 45544427. The next prime is 45544453. The reversal of 45544449 is 94444554.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 45544449 - 2⁷ = 45544321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45544459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7590739 + ... + 7590744.

It is an arithmetic number, because the mean of its divisors is an integer number (15181484).

Almost surely, 2^45544449 is an apocalyptic number.

It is an amenable number.

45544449 is a deficient number, since it is larger than the sum of its proper divisors (15181487).

45544449 is a wasteful number, since it uses less digits than its factorization.

45544449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15181486.

The product of its digits is 230400, while the sum is 39.

The square root of 45544449 is about 6748.6627564281. The cubic root of 45544449 is about 357.1180630940.

The spelling of 45544449 in words is "forty-five million, five hundred forty-four thousand, four hundred forty-nine".