445502004521 has 4 divisors (see below), whose sum is σ = 509145148032. Its totient is φ = 381858861012.

The previous prime is 445502004503. The next prime is 445502004569. The reversal of 445502004521 is 125400205544.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 445502004521 - 2⁶ = 445502004457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (445502004821) 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, 31821571745 + ... + 31821571758.

It is an arithmetic number, because the mean of its divisors is an integer number (127286287008).

Almost surely, 2^445502004521 is an apocalyptic number.

It is an amenable number.

445502004521 is a deficient number, since it is larger than the sum of its proper divisors (63643143511).

445502004521 is an equidigital number, since it uses as much as digits as its factorization.

445502004521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63643143510.

The product of its (nonzero) digits is 32000, while the sum is 32.

The spelling of 445502004521 in words is "four hundred forty-five billion, five hundred two million, four thousand, five hundred twenty-one".