14217914542225 has 9 divisors (see below), whose sum is σ = 17630237410513. Its totient is φ = 11374316551120.

The previous prime is 14217914542217. The next prime is 14217914542253. The reversal of 14217914542225 is 52224541971241.

The square root of 14217914542225 is 3770665.

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 4999306943569 + 9218607598656 = 2235913^2 + 3036216^2 .

It is not a de Polignac number, because 14217914542225 - 2³ = 14217914542217 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 18476259 + ... + 19230391.

Almost surely, 2^{14217914542225} is an apocalyptic number.

14217914542225 is the 3770665-th square number.

14217914542225 is the 1885333-rd centered octagonal number.

It is an amenable number.

14217914542225 is a deficient number, since it is larger than the sum of its proper divisors (3412322868288).

14217914542225 is an frugal number, since it uses more digits than its factorization.

14217914542225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1508276 (or 754138 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 49.

Multiplying 14217914542225 by its sum of digits (49), we get a square (696677812569025 = 26394655²).

The spelling of 14217914542225 in words is "fourteen trillion, two hundred seventeen billion, nine hundred fourteen million, five hundred forty-two thousand, two hundred twenty-five".