445531315252 has 24 divisors (see below), whose sum is σ = 786209977224. Its totient is φ = 220903368192.

The previous prime is 445531315213. The next prime is 445531315291. The reversal of 445531315252 is 252513135544.

It is an interprime number because it is at equal distance from previous prime (445531315213) and next prime (445531315291).

It can be written as a sum of positive squares in 4 ways, for example, as 82120072356 + 363411242896 = 286566^2 + 602836^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79638 + ... + 947314.

It is an arithmetic number, because the mean of its divisors is an integer number (32758749051).

Almost surely, 2^445531315252 is an apocalyptic number.

It is an amenable number.

445531315252 is a deficient number, since it is larger than the sum of its proper divisors (340678661972).

445531315252 is a wasteful number, since it uses less digits than its factorization.

445531315252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868755 (or 868753 counting only the distinct ones).

The product of its digits is 360000, while the sum is 40.

The spelling of 445531315252 in words is "four hundred forty-five billion, five hundred thirty-one million, three hundred fifteen thousand, two hundred fifty-two".