725022729 has 24 divisors (see below), whose sum is σ = 1107375360. Its totient is φ = 455831712.

The previous prime is 725022671. The next prime is 725022763. The reversal of 725022729 is 927220527.

725022729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 725022729 - 2¹² = 725018633 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 725022693 and 725022702.

It is not an unprimeable number, because it can be changed into a prime (725022029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28627 + ... + 47639.

It is an arithmetic number, because the mean of its divisors is an integer number (46140640).

Almost surely, 2^725022729 is an apocalyptic number.

It is an amenable number.

725022729 is a deficient number, since it is larger than the sum of its proper divisors (382352631).

725022729 is a wasteful number, since it uses less digits than its factorization.

725022729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19261 (or 19258 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 725022729 is about 26926.2460992987. The cubic root of 725022729 is about 898.3602773435.

The spelling of 725022729 in words is "seven hundred twenty-five million, twenty-two thousand, seven hundred twenty-nine".