725137211 has 8 divisors (see below), whose sum is σ = 745108560. Its totient is φ = 705185568.

The previous prime is 725137163. The next prime is 725137229. The reversal of 725137211 is 112731527.

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 725137211 - 2¹⁰ = 725136187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (725137811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99680 + ... + 106706.

It is an arithmetic number, because the mean of its divisors is an integer number (93138570).

Almost surely, 2^725137211 is an apocalyptic number.

725137211 is a deficient number, since it is larger than the sum of its proper divisors (19971349).

725137211 is a wasteful number, since it uses less digits than its factorization.

725137211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9853.

The product of its digits is 2940, while the sum is 29.

The square root of 725137211 is about 26928.3718594348. The cubic root of 725137211 is about 898.4075589272.

Adding to 725137211 its reverse (112731527), we get a palindrome (837868738).

The spelling of 725137211 in words is "seven hundred twenty-five million, one hundred thirty-seven thousand, two hundred eleven".