6514911225 has 27 divisors (see below), whose sum is σ = 11671098829. Its totient is φ = 3473973600.

The previous prime is 6514911217. The next prime is 6514911229. The reversal of 6514911225 is 5221194156.

The square root of 6514911225 is 80715.

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

6514911225 is a `hidden beast` number, since 6 + 514 + 9 + 112 + 25 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 646125561 + 5868785664 = 25419^2 + 76608^2 .

It is not a de Polignac number, because 6514911225 - 2³ = 6514911217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6514911225.

It is not an unprimeable number, because it can be changed into a prime (6514911229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1208035 + ... + 1213415.

Almost surely, 2^6514911225 is an apocalyptic number.

6514911225 is the 80715-th square number.

6514911225 is the 40358-th centered octagonal number.

It is an amenable number.

6514911225 is a deficient number, since it is larger than the sum of its proper divisors (5156187604).

6514911225 is an frugal number, since it uses more digits than its factorization.

6514911225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10778 (or 5389 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The cubic root of 6514911225 is about 1867.6815735025.

Multiplying 6514911225 by its sum of digits (36), we get a square (234536804100 = 484290²).

The spelling of 6514911225 in words is "six billion, five hundred fourteen million, nine hundred eleven thousand, two hundred twenty-five".