489720125 has 8 divisors (see below), whose sum is σ = 611170872. Its totient is φ = 391776000.

The previous prime is 489720089. The next prime is 489720137. The reversal of 489720125 is 521027984.

It can be written as a sum of positive squares in 4 ways, for example, as 2105401 + 487614724 = 1451^2 + 22082^2 .

It is not a de Polignac number, because 489720125 - 2⁸ = 489719869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1958756 + ... + 1959005.

It is an arithmetic number, because the mean of its divisors is an integer number (76396359).

Almost surely, 2^489720125 is an apocalyptic number.

It is an amenable number.

489720125 is a deficient number, since it is larger than the sum of its proper divisors (121450747).

489720125 is an equidigital number, since it uses as much as digits as its factorization.

489720125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3917776 (or 3917766 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 489720125 is about 22129.6209863612. The cubic root of 489720125 is about 788.2233883784.

The spelling of 489720125 in words is "four hundred eighty-nine million, seven hundred twenty thousand, one hundred twenty-five".