725748773 has 4 divisors (see below), whose sum is σ = 726448320. Its totient is φ = 725049228.

The previous prime is 725748743. The next prime is 725748787. The reversal of 725748773 is 377847527.

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 725748773 - 2¹⁴ = 725732389 is a prime.

It is a super-2 number, since 2×725748773² = 1053422563022011058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725748703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 348215 + ... + 350292.

It is an arithmetic number, because the mean of its divisors is an integer number (181612080).

Almost surely, 2^725748773 is an apocalyptic number.

It is an amenable number.

725748773 is a deficient number, since it is larger than the sum of its proper divisors (699547).

725748773 is a wasteful number, since it uses less digits than its factorization.

725748773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699546.

The product of its digits is 2304960, while the sum is 50.

The square root of 725748773 is about 26939.7248129969. The cubic root of 725748773 is about 898.6600525374.

The spelling of 725748773 in words is "seven hundred twenty-five million, seven hundred forty-eight thousand, seven hundred seventy-three".