725170526 has 16 divisors (see below), whose sum is σ = 1118432448. Its totient is φ = 352425600.

The previous prime is 725170517. The next prime is 725170529. The reversal of 725170526 is 625071527.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725170529) 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, 5906 + ... + 38538.

It is an arithmetic number, because the mean of its divisors is an integer number (69902028).

Almost surely, 2^725170526 is an apocalyptic number.

725170526 is a deficient number, since it is larger than the sum of its proper divisors (393261922).

725170526 is a wasteful number, since it uses less digits than its factorization.

725170526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32947.

The product of its (nonzero) digits is 29400, while the sum is 35.

The square root of 725170526 is about 26928.9904378163. The cubic root of 725170526 is about 898.4213172380.

It can be divided in two parts, 7251 and 70526, that added together give a palindrome (77777).

The spelling of 725170526 in words is "seven hundred twenty-five million, one hundred seventy thousand, five hundred twenty-six".