725290029 has 18 divisors (see below), whose sum is σ = 1084417230. Its totient is φ = 466573296.

The previous prime is 725289997. The next prime is 725290067. The reversal of 725290029 is 920092527.

725290029 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 625250025 + 100040004 = 25005^2 + 10002^2 .

It is not a de Polignac number, because 725290029 - 2⁵ = 725289997 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 725289975 and 725290002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725290079) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 434254 + ... + 435920.

Almost surely, 2^725290029 is an apocalyptic number.

It is an amenable number.

725290029 is a deficient number, since it is larger than the sum of its proper divisors (359127201).

725290029 is an equidigital number, since it uses as much as digits as its factorization.

725290029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3369 (or 1699 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 725290029 is about 26931.2092004797. The cubic root of 725290029 is about 898.4706656978.

The spelling of 725290029 in words is "seven hundred twenty-five million, two hundred ninety thousand, twenty-nine".