445003101325021 has 4 divisors (see below), whose sum is σ = 460348035853500. Its totient is φ = 429658166796544.

The previous prime is 445003101324941. The next prime is 445003101325037. The reversal of 445003101325021 is 120523101300544.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 181613734299396 + 263389367025625 = 13476414^2 + 16229275^2 .

It is a cyclic number.

It is not a de Polignac number, because 445003101325021 - 2³¹ = 445000953841373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445003101325121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7672467264196 + ... + 7672467264253.

It is an arithmetic number, because the mean of its divisors is an integer number (115087008963375).

Almost surely, 2^{445003101325021} is an apocalyptic number.

It is an amenable number.

445003101325021 is a deficient number, since it is larger than the sum of its proper divisors (15344934528479).

445003101325021 is a wasteful number, since it uses less digits than its factorization.

445003101325021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15344934528478.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 445003101325021 its reverse (120523101300544), we get a palindrome (565526202625565).

The spelling of 445003101325021 in words is "four hundred forty-five trillion, three billion, one hundred one million, three hundred twenty-five thousand, twenty-one".