281064324025 has 9 divisors (see below), whose sum is σ = 348523048783. Its totient is φ = 224849338600.

The previous prime is 281064324019. The next prime is 281064324089. The reversal of 281064324025 is 520423460182.

The square root of 281064324025 is 530155.

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., 101183156649 + 179881167376 = 318093^2 + 424124^2 .

It is not a de Polignac number, because 281064324025 - 2²⁷ = 280930106297 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, 2597760 + ... + 2703790.

Almost surely, 2^281064324025 is an apocalyptic number.

281064324025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

281064324025 is the 530155-th square number.

281064324025 is the 265078-th centered octagonal number.

It is an amenable number.

281064324025 is a deficient number, since it is larger than the sum of its proper divisors (67458724758).

281064324025 is an frugal number, since it uses more digits than its factorization.

281064324025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212072 (or 106036 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 37.

The spelling of 281064324025 in words is "two hundred eighty-one billion, sixty-four million, three hundred twenty-four thousand, twenty-five".