54989862715225 has 9 divisors (see below), whose sum is σ = 68187475743103. Its totient is φ = 43991860510120.

The previous prime is 54989862715223. The next prime is 54989862715261. The reversal of 54989862715225 is 52251726898945.

The square root of 54989862715225 is 7415515.

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

It can be written as a sum of positive squares in only one way, i.e., 19796350577481 + 35193512137744 = 4449309^2 + 5932412^2 .

It is not a de Polignac number, because 54989862715225 - 2¹ = 54989862715223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54989862715223) 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, 36336024 + ... + 37819126.

Almost surely, 2^{54989862715225} is an apocalyptic number.

54989862715225 is the 7415515-th square number.

54989862715225 is the 3707758-th centered octagonal number.

It is an amenable number.

54989862715225 is a deficient number, since it is larger than the sum of its proper divisors (13197613027878).

54989862715225 is an frugal number, since it uses more digits than its factorization.

54989862715225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2966216 (or 1483108 counting only the distinct ones).

The product of its digits is 870912000, while the sum is 73.

The spelling of 54989862715225 in words is "fifty-four trillion, nine hundred eighty-nine billion, eight hundred sixty-two million, seven hundred fifteen thousand, two hundred twenty-five".