725011537 has 4 divisors (see below), whose sum is σ = 725333616. Its totient is φ = 724689460.

The previous prime is 725011531. The next prime is 725011577. The reversal of 725011537 is 735110527.

725011537 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 725011537 - 2⁷ = 725011409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 725011499 and 725011508.

It is not an unprimeable number, because it can be changed into a prime (725011531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157639 + ... + 162172.

It is an arithmetic number, because the mean of its divisors is an integer number (181333404).

Almost surely, 2^725011537 is an apocalyptic number.

It is an amenable number.

725011537 is a deficient number, since it is larger than the sum of its proper divisors (322079).

725011537 is a wasteful number, since it uses less digits than its factorization.

725011537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322078.

The product of its (nonzero) digits is 7350, while the sum is 31.

The square root of 725011537 is about 26926.0382715319. The cubic root of 725011537 is about 898.3556547298.

The spelling of 725011537 in words is "seven hundred twenty-five million, eleven thousand, five hundred thirty-seven".