16562254605625 has 15 divisors (see below), whose sum is σ = 20696320492617. Its totient is φ = 13249722291000.

The previous prime is 16562254605607. The next prime is 16562254605629. The reversal of 16562254605625 is 52650645226561.

The square root of 16562254605625 is 4069675.

It is a perfect power (a square), and thus also a powerful number.

16562254605625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1298480761081 + 15263773844544 = 1139509^2 + 3906888^2 .

It is not a de Polignac number, because 16562254605625 - 2¹³ = 16562254597433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16562254605629) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 101660482 + ... + 101823268.

Almost surely, 2^{16562254605625} is an apocalyptic number.

16562254605625 is the 4069675-th square number.

16562254605625 is the 2034838-th centered octagonal number.

It is an amenable number.

16562254605625 is a deficient number, since it is larger than the sum of its proper divisors (4134065886992).

16562254605625 is an frugal number, since it uses more digits than its factorization.

16562254605625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325594 (or 162792 counting only the distinct ones).

The product of its (nonzero) digits is 25920000, while the sum is 55.

The spelling of 16562254605625 in words is "sixteen trillion, five hundred sixty-two billion, two hundred fifty-four million, six hundred five thousand, six hundred twenty-five".