445521025522 has 8 divisors (see below), whose sum is σ = 674412561900. Its totient is φ = 220716838224.

The previous prime is 445521025519. The next prime is 445521025561. The reversal of 445521025522 is 225520125544.

It can be written as a sum of positive squares in 2 ways, for example, as 440974355481 + 4546670041 = 664059^2 + 67429^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1021836997 + ... + 1021837432.

Almost surely, 2^445521025522 is an apocalyptic number.

445521025522 is a deficient number, since it is larger than the sum of its proper divisors (228891536378).

445521025522 is a wasteful number, since it uses less digits than its factorization.

445521025522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2043674540.

The product of its (nonzero) digits is 160000, while the sum is 37.

The spelling of 445521025522 in words is "four hundred forty-five billion, five hundred twenty-one million, twenty-five thousand, five hundred twenty-two".