445072556523 has 16 divisors (see below), whose sum is σ = 718100259840. Its totient is φ = 239366752896.

The previous prime is 445072556497. The next prime is 445072556587. The reversal of 445072556523 is 325655270544.

It is not a de Polignac number, because 445072556523 - 2³⁶ = 376353079787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (445072556023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 623350563 + ... + 623351276.

It is an arithmetic number, because the mean of its divisors is an integer number (44881266240).

Almost surely, 2^445072556523 is an apocalyptic number.

445072556523 is a deficient number, since it is larger than the sum of its proper divisors (273027703317).

445072556523 is a wasteful number, since it uses less digits than its factorization.

445072556523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1246701866.

The product of its (nonzero) digits is 5040000, while the sum is 48.

The spelling of 445072556523 in words is "four hundred forty-five billion, seventy-two million, five hundred fifty-six thousand, five hundred twenty-three".