725071337 has 4 divisors (see below), whose sum is σ = 725437140. Its totient is φ = 724705536.

The previous prime is 725071313. The next prime is 725071349. The reversal of 725071337 is 733170527.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 733170527 = 107 ⋅6852061.

It can be written as a sum of positive squares in 2 ways, for example, as 176996416 + 548074921 = 13304^2 + 23411^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-725071337 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 725071297 and 725071306.

It is not an unprimeable number, because it can be changed into a prime (725071357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179912 + ... + 183897.

It is an arithmetic number, because the mean of its divisors is an integer number (181359285).

Almost surely, 2^725071337 is an apocalyptic number.

It is an amenable number.

725071337 is a deficient number, since it is larger than the sum of its proper divisors (365803).

725071337 is a wasteful number, since it uses less digits than its factorization.

725071337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365802.

The product of its (nonzero) digits is 30870, while the sum is 35.

The square root of 725071337 is about 26927.1486979220. The cubic root of 725071337 is about 898.3803532753.

It can be divided in two parts, 7250 and 71337, that added together give a palindrome (78587).

The spelling of 725071337 in words is "seven hundred twenty-five million, seventy-one thousand, three hundred thirty-seven".