554216225 has 18 divisors (see below), whose sum is σ = 725313510. Its totient is φ = 420030720.

The previous prime is 554216203. The next prime is 554216249. The reversal of 554216225 is 522612455.

It can be written as a sum of positive squares in 3 ways, for example, as 157728481 + 396487744 = 12559^2 + 19912^2 .

It is not a de Polignac number, because 554216225 - 2¹⁶ = 554150689 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 554216191 and 554216200.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 21680 + ... + 39729.

It is an arithmetic number, because the mean of its divisors is an integer number (40295195).

Almost surely, 2^554216225 is an apocalyptic number.

It is an amenable number.

554216225 is a deficient number, since it is larger than the sum of its proper divisors (171097285).

554216225 is a wasteful number, since it uses less digits than its factorization.

554216225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61457 (or 61433 counting only the distinct ones).

The product of its digits is 24000, while the sum is 32.

The square root of 554216225 is about 23541.7974037668. The cubic root of 554216225 is about 821.4095452250.

The spelling of 554216225 in words is "five hundred fifty-four million, two hundred sixteen thousand, two hundred twenty-five".