551448236214225 has 405 divisors, whose sum is σ = 1199717547737643. Its totient is φ = 249679582367040.

The previous prime is 551448236214181. The next prime is 551448236214247. The reversal of 551448236214225 is 522412632844155.

The square root of 551448236214225 is 23482935.

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

551448236214225 is a `hidden beast` number, since 5 + 5 + 1 + 4 + 4 + 8 + 2 + 3 + 621 + 4 + 2 + 2 + 5 = 666.

It can be written as a sum of positive squares in only one way, i.e., 198521365037121 + 352926871177104 = 14089761^2 + 18786348^2 .

It is a tau number, because it is divible by the number of its divisors (405).

It is not a de Polignac number, because 551448236214225 - 2¹¹ = 551448236212177 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 404 ways as a sum of consecutive naturals, for example, 939434814382 + ... + 939434814968.

Almost surely, 2^{551448236214225} is an apocalyptic number.

551448236214225 is the 23482935-th square number.

551448236214225 is the 11741468-th centered octagonal number.

It is an amenable number.

551448236214225 is an abundant number, since it is smaller than the sum of its proper divisors (648269311523418).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

551448236214225 is an frugal number, since it uses more digits than its factorization.

551448236214225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1464 (or 729 counting only the distinct ones).

The product of its digits is 18432000, while the sum is 54.

The spelling of 551448236214225 in words is "five hundred fifty-one trillion, four hundred forty-eight billion, two hundred thirty-six million, two hundred fourteen thousand, two hundred twenty-five".