445344172025 has 6 divisors (see below), whose sum is σ = 552226773342. Its totient is φ = 356275337600.

The previous prime is 445344171977. The next prime is 445344172033. The reversal of 445344172025 is 520271443544.

It can be written as a sum of positive squares in 3 ways, for example, as 49163305984 + 396180866041 = 221728^2 + 629429^2 .

It is a de Polignac number, because none of the positive numbers 2^k-445344172025 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8906883416 + ... + 8906883465.

It is an arithmetic number, because the mean of its divisors is an integer number (92037795557).

Almost surely, 2^445344172025 is an apocalyptic number.

It is an amenable number.

445344172025 is a deficient number, since it is larger than the sum of its proper divisors (106882601317).

445344172025 is a wasteful number, since it uses less digits than its factorization.

445344172025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17813766891 (or 17813766886 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 41.

The spelling of 445344172025 in words is "four hundred forty-five billion, three hundred forty-four million, one hundred seventy-two thousand, twenty-five".