725266724513 has 8 divisors (see below), whose sum is σ = 764432073000. Its totient is φ = 687045119488.

The previous prime is 725266724467. The next prime is 725266724531. The reversal of 725266724513 is 315427662527.

It can be written as a sum of positive squares in 4 ways, for example, as 203272034449 + 521994690064 = 450857^2 + 722492^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 725266724513 - 2⁸ = 725266724257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (725266724543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235934288 + ... + 235937361.

It is an arithmetic number, because the mean of its divisors is an integer number (95554009125).

Almost surely, 2^725266724513 is an apocalyptic number.

It is an amenable number.

725266724513 is a deficient number, since it is larger than the sum of its proper divisors (39165348487).

725266724513 is a wasteful number, since it uses less digits than its factorization.

725266724513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471871731.

The product of its digits is 4233600, while the sum is 50.

The spelling of 725266724513 in words is "seven hundred twenty-five billion, two hundred sixty-six million, seven hundred twenty-four thousand, five hundred thirteen".