1308724560025 has 9 divisors (see below), whose sum is σ = 1622825547231. Its totient is φ = 1046975072040.

The previous prime is 1308724560023. The next prime is 1308724560029. The reversal of 1308724560025 is 5200654278031.

The square root of 1308724560025 is 1143995.

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., 471140841609 + 837583718416 = 686397^2 + 915196^2 .

It is not a de Polignac number, because 1308724560025 - 2¹ = 1308724560023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1308724560023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5605576 + ... + 5834374.

Almost surely, 2^{1308724560025} is an apocalyptic number.

1308724560025 is the 1143995-th square number.

1308724560025 is the 571998-th centered octagonal number.

It is an amenable number.

1308724560025 is a deficient number, since it is larger than the sum of its proper divisors (314100987206).

1308724560025 is an frugal number, since it uses more digits than its factorization.

1308724560025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457608 (or 228804 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 43.

The spelling of 1308724560025 in words is "one trillion, three hundred eight billion, seven hundred twenty-four million, five hundred sixty thousand, twenty-five".