16573454252525 has 12 divisors (see below), whose sum is σ = 21052329207924. Its totient is φ = 12935378928000.

The previous prime is 16573454252519. The next prime is 16573454252573. The reversal of 16573454252525 is 52525245437561.

It can be written as a sum of positive squares in 6 ways, for example, as 4301401336324 + 12272052916201 = 2073982^2 + 3503149^2 .

It is not a de Polignac number, because 16573454252525 - 2³⁰ = 16572380510701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8084610806 + ... + 8084612855.

It is an arithmetic number, because the mean of its divisors is an integer number (1754360767327).

Almost surely, 2^{16573454252525} is an apocalyptic number.

It is an amenable number.

16573454252525 is a deficient number, since it is larger than the sum of its proper divisors (4478874955399).

16573454252525 is a wasteful number, since it uses less digits than its factorization.

16573454252525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16169223712 (or 16169223707 counting only the distinct ones).

The product of its digits is 50400000, while the sum is 56.

The spelling of 16573454252525 in words is "sixteen trillion, five hundred seventy-three billion, four hundred fifty-four million, two hundred fifty-two thousand, five hundred twenty-five".