29239290025 has 27 divisors (see below), whose sum is σ = 39865249893. Its totient is φ = 21258098400.

The previous prime is 29239290011. The next prime is 29239290079. The reversal of 29239290025 is 52009293292.

It is a happy number.

The square root of 29239290025 is 170995.

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 6542059689 + 22697230336 = 80883^2 + 150656^2 .

It is not a de Polignac number, because 29239290025 - 2¹¹ = 29239287977 is a prime.

It is a Duffinian number.

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 26 ways as a sum of consecutive naturals, for example, 9403171 + ... + 9406279.

Almost surely, 2^29239290025 is an apocalyptic number.

29239290025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

29239290025 is the 170995-th square number.

29239290025 is the 85498-th centered octagonal number.

It is an amenable number.

29239290025 is a deficient number, since it is larger than the sum of its proper divisors (10625959868).

29239290025 is an frugal number, since it uses more digits than its factorization.

29239290025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6250 (or 3125 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 43.

The spelling of 29239290025 in words is "twenty-nine billion, two hundred thirty-nine million, two hundred ninety thousand, twenty-five".