29393388025 has 27 divisors (see below), whose sum is σ = 38737111719. Its totient is φ = 22120519680.

The previous prime is 29393388001. The next prime is 29393388067. The reversal of 29393388025 is 52088339392.

The square root of 29393388025 is 171445.

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

It can be written as a sum of positive squares in 13 ways, for example, as 1798862569 + 27594525456 = 42413^2 + 166116^2 .

It is not a de Polignac number, because 29393388025 - 2¹⁷ = 29393256953 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 (23) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 14571817 + ... + 14573833.

Almost surely, 2^29393388025 is an apocalyptic number.

29393388025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

29393388025 is the 171445-th square number.

29393388025 is the 85723-rd centered octagonal number.

It is an amenable number.

29393388025 is a deficient number, since it is larger than the sum of its proper divisors (9343723694).

29393388025 is an frugal number, since it uses more digits than its factorization.

29393388025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4078 (or 2039 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 52.

The spelling of 29393388025 in words is "twenty-nine billion, three hundred ninety-three million, three hundred eighty-eight thousand, twenty-five".