45554447 has 6 divisors (see below), whose sum is σ = 47180328. Its totient is φ = 43982792.

The previous prime is 45554413. The next prime is 45554459. The reversal of 45554447 is 74445554.

It is a happy number.

It is not a de Polignac number, because 45554447 - 2²⁰ = 44505871 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 45554447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45554497) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26243 + ... + 27924.

It is an arithmetic number, because the mean of its divisors is an integer number (7863388).

Almost surely, 2^45554447 is an apocalyptic number.

45554447 is a deficient number, since it is larger than the sum of its proper divisors (1625881).

45554447 is an equidigital number, since it uses as much as digits as its factorization.

45554447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54225 (or 54196 counting only the distinct ones).

The product of its digits is 224000, while the sum is 38.

The square root of 45554447 is about 6749.4034551211. The cubic root of 45554447 is about 357.1441929169.

The spelling of 45554447 in words is "forty-five million, five hundred fifty-four thousand, four hundred forty-seven".