720760725 has 36 divisors (see below), whose sum is σ = 1358916000. Its totient is φ = 364171680.

The previous prime is 720760723. The next prime is 720760769. The reversal of 720760725 is 527067027.

720760725 is a `hidden beast` number, since 7 + 20 + 7 + 607 + 25 = 666.

It is not a de Polignac number, because 720760725 - 2¹ = 720760723 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 720760725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720760721) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 80025 + ... + 88574.

Almost surely, 2^720760725 is an apocalyptic number.

720760725 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

720760725 is a deficient number, since it is larger than the sum of its proper divisors (638155275).

720760725 is a wasteful number, since it uses less digits than its factorization.

720760725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168634 (or 168626 counting only the distinct ones).

The product of its (nonzero) digits is 41160, while the sum is 36.

The square root of 720760725 is about 26846.9872611435. The cubic root of 720760725 is about 896.5964971523.

The spelling of 720760725 in words is "seven hundred twenty million, seven hundred sixty thousand, seven hundred twenty-five".