720725053 has 4 divisors (see below), whose sum is σ = 720820828. Its totient is φ = 720629280.

The previous prime is 720725051. The next prime is 720725141. The reversal of 720725053 is 350527027.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 350527027 = 16111 ⋅21757.

It can be written as a sum of positive squares in 2 ways, for example, as 224460324 + 496264729 = 14982^2 + 22277^2 .

It is a cyclic number.

It is not a de Polignac number, because 720725053 - 2¹ = 720725051 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720725051) 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, 35538 + ... + 52003.

It is an arithmetic number, because the mean of its divisors is an integer number (180205207).

Almost surely, 2^720725053 is an apocalyptic number.

It is an amenable number.

720725053 is a deficient number, since it is larger than the sum of its proper divisors (95775).

720725053 is an equidigital number, since it uses as much as digits as its factorization.

720725053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95774.

The product of its (nonzero) digits is 14700, while the sum is 31.

The square root of 720725053 is about 26846.3228953240. The cubic root of 720725053 is about 896.5817054113.

The spelling of 720725053 in words is "seven hundred twenty million, seven hundred twenty-five thousand, fifty-three".