725260523 has 4 divisors (see below), whose sum is σ = 781049808. Its totient is φ = 669471240.

The previous prime is 725260463. The next prime is 725260553. The reversal of 725260523 is 325062527.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 725260523 - 2¹⁴ = 725244139 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 725260523.

It is not an unprimeable number, because it can be changed into a prime (725260553) 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 3 ways as a sum of consecutive naturals, for example, 27894623 + ... + 27894648.

It is an arithmetic number, because the mean of its divisors is an integer number (195262452).

Almost surely, 2^725260523 is an apocalyptic number.

725260523 is a deficient number, since it is larger than the sum of its proper divisors (55789285).

725260523 is a wasteful number, since it uses less digits than its factorization.

725260523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55789284.

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 725260523 is about 26930.6613918040. The cubic root of 725260523 is about 898.4584817742.

The spelling of 725260523 in words is "seven hundred twenty-five million, two hundred sixty thousand, five hundred twenty-three".