447215253542500 has 60 divisors (see below), whose sum is σ = 977982466192732. Its totient is φ = 178883879040000.

The previous prime is 447215253542489. The next prime is 447215253542543. The reversal of 447215253542500 is 5245352512744.

It is a happy number.

It can be written as a sum of positive squares in 10 ways, for example, as 433318179159616 + 13897074382884 = 20816296^2 + 3727878^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 208033132 + ... + 210171868.

Almost surely, 2^{447215253542500} is an apocalyptic number.

It is an amenable number.

447215253542500 is an abundant number, since it is smaller than the sum of its proper divisors (530767212650232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

447215253542500 is a wasteful number, since it uses less digits than its factorization.

447215253542500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2222402 (or 2222385 counting only the distinct ones).

The product of its (nonzero) digits is 6720000, while the sum is 49.

The spelling of 447215253542500 in words is "four hundred forty-seven trillion, two hundred fifteen billion, two hundred fifty-three million, five hundred forty-two thousand, five hundred".