725229111 has 8 divisors (see below), whose sum is σ = 970567920. Its totient is φ = 481688192.

The previous prime is 725229103. The next prime is 725229137. The reversal of 725229111 is 111922527.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 725229111 - 2³ = 725229103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725229151) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 448530 + ... + 450143.

It is an arithmetic number, because the mean of its divisors is an integer number (121320990).

Almost surely, 2^725229111 is an apocalyptic number.

725229111 is a deficient number, since it is larger than the sum of its proper divisors (245338809).

725229111 is a wasteful number, since it uses less digits than its factorization.

725229111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898945.

The product of its digits is 2520, while the sum is 30.

The square root of 725229111 is about 26930.0781840677. The cubic root of 725229111 is about 898.4455104421.

It can be divided in two parts, 7252 and 29111, that added together give a palindrome (36363).

The spelling of 725229111 in words is "seven hundred twenty-five million, two hundred twenty-nine thousand, one hundred eleven".