725763765 has 16 divisors (see below), whose sum is σ = 1178555328. Its totient is φ = 381296256.

The previous prime is 725763763. The next prime is 725763803. The reversal of 725763765 is 567367527.

It is not a de Polignac number, because 725763765 - 2¹ = 725763763 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725763763) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 360072 + ... + 362081.

It is an arithmetic number, because the mean of its divisors is an integer number (73659708).

Almost surely, 2^725763765 is an apocalyptic number.

It is an amenable number.

725763765 is a deficient number, since it is larger than the sum of its proper divisors (452791563).

725763765 is a wasteful number, since it uses less digits than its factorization.

725763765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722228.

The product of its digits is 1852200, while the sum is 48.

The square root of 725763765 is about 26940.0030623606. The cubic root of 725763765 is about 898.6662404541. Note that the first 3 decimals are identical.

The spelling of 725763765 in words is "seven hundred twenty-five million, seven hundred sixty-three thousand, seven hundred sixty-five".