489018725 has 12 divisors (see below), whose sum is σ = 653028516. Its totient is φ = 361121280.

The previous prime is 489018721. The next prime is 489018743. The reversal of 489018725 is 527810984.

It can be written as a sum of positive squares in 6 ways, for example, as 146361604 + 342657121 = 12098^2 + 18511^2 .

It is not a de Polignac number, because 489018725 - 2² = 489018721 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 (489018721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 752012 + ... + 752661.

It is an arithmetic number, because the mean of its divisors is an integer number (54419043).

Almost surely, 2^489018725 is an apocalyptic number.

It is an amenable number.

489018725 is a deficient number, since it is larger than the sum of its proper divisors (164009791).

489018725 is a wasteful number, since it uses less digits than its factorization.

489018725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1504696 (or 1504691 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 44.

The square root of 489018725 is about 22113.7677703281. The cubic root of 489018725 is about 787.8468984810.

The spelling of 489018725 in words is "four hundred eighty-nine million, eighteen thousand, seven hundred twenty-five".