447521055 has 16 divisors (see below), whose sum is σ = 716740224. Its totient is φ = 238442400.

The previous prime is 447521033. The next prime is 447521057. The reversal of 447521055 is 550125744.

It is a de Polignac number, because none of the positive numbers 2^k-447521055 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447521057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1572 + ... + 29958.

It is an arithmetic number, because the mean of its divisors is an integer number (44796264).

Almost surely, 2^447521055 is an apocalyptic number.

447521055 is a deficient number, since it is larger than the sum of its proper divisors (269219169).

447521055 is a wasteful number, since it uses less digits than its factorization.

447521055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29446.

The product of its (nonzero) digits is 28000, while the sum is 33.

The square root of 447521055 is about 21154.6934508633. The cubic root of 447521055 is about 764.8997006356.

Adding to 447521055 its reverse (550125744), we get a palindrome (997646799).

The spelling of 447521055 in words is "four hundred forty-seven million, five hundred twenty-one thousand, fifty-five".