16275455461225 has 9 divisors (see below), whose sum is σ = 20181589784517. Its totient is φ = 13020348231840.

The previous prime is 16275455461201. The next prime is 16275455461229. The reversal of 16275455461225 is 52216455457261.

The square root of 16275455461225 is 4034285.

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

It can be written as a sum of positive squares in 4 ways, for example, as 69710256729 + 16205745204496 = 264027^2 + 4025636^2 .

It is not a de Polignac number, because 16275455461225 - 2¹¹ = 16275455459177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16275455461229) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 19767997 + ... + 20574853.

Almost surely, 2^{16275455461225} is an apocalyptic number.

16275455461225 is the 4034285-th square number.

16275455461225 is the 2017143-rd centered octagonal number.

It is an amenable number.

16275455461225 is a deficient number, since it is larger than the sum of its proper divisors (3906134323292).

16275455461225 is an frugal number, since it uses more digits than its factorization.

16275455461225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1613724 (or 806862 counting only the distinct ones).

The product of its digits is 20160000, while the sum is 55.

The spelling of 16275455461225 in words is "sixteen trillion, two hundred seventy-five billion, four hundred fifty-five million, four hundred sixty-one thousand, two hundred twenty-five".