725059777 has 8 divisors (see below), whose sum is σ = 786076200. Its totient is φ = 664792320.

The previous prime is 725059763. The next prime is 725059787. The reversal of 725059777 is 777950527.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12383361 + 712676416 = 3519^2 + 26696^2 .

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 725059777 - 2⁷ = 725059649 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 725059777.

It is not an unprimeable number, because it can be changed into a prime (725059757) 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, 185224 + ... + 189097.

It is an arithmetic number, because the mean of its divisors is an integer number (98259525).

Almost surely, 2^725059777 is an apocalyptic number.

It is an amenable number.

725059777 is a deficient number, since it is larger than the sum of its proper divisors (61016423).

725059777 is a wasteful number, since it uses less digits than its factorization.

725059777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374483.

The product of its (nonzero) digits is 1080450, while the sum is 49.

The square root of 725059777 is about 26926.9340438157. The cubic root of 725059777 is about 898.3755788797.

Subtracting from 725059777 its product of nonzero digits (1080450), we obtain a palindrome (723979327).

The spelling of 725059777 in words is "seven hundred twenty-five million, fifty-nine thousand, seven hundred seventy-seven".