159924009025 has 45 divisors (see below), whose sum is σ = 218465500665. Its totient is φ = 116132412000.

The previous prime is 159924009017. The next prime is 159924009059. The reversal of 159924009025 is 520900429951.

The square root of 159924009025 is 399905.

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

It can be written as a sum of positive squares in 4 ways, for example, as 4706920449 + 155217088576 = 68607^2 + 393976^2 .

It is not a de Polignac number, because 159924009025 - 2³ = 159924009017 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 241942195 + ... + 241942855.

Almost surely, 2^159924009025 is an apocalyptic number.

159924009025 is the 399905-th square number.

159924009025 is the 199953-rd centered octagonal number.

It is an amenable number.

159924009025 is a deficient number, since it is larger than the sum of its proper divisors (58541491640).

159924009025 is an frugal number, since it uses more digits than its factorization.

159924009025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1376 (or 677 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 46.

The spelling of 159924009025 in words is "one hundred fifty-nine billion, nine hundred twenty-four million, nine thousand, twenty-five".