389579525 has 6 divisors (see below), whose sum is σ = 483078642. Its totient is φ = 311663600.

The previous prime is 389579503. The next prime is 389579551. The reversal of 389579525 is 525975983.

It can be written as a sum of positive squares in 3 ways, for example, as 2316484 + 387263041 = 1522^2 + 19679^2 .

It is not a de Polignac number, because 389579525 - 2⁶ = 389579461 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 5 ways as a sum of consecutive naturals, for example, 7791566 + ... + 7791615.

It is an arithmetic number, because the mean of its divisors is an integer number (80513107).

Almost surely, 2^389579525 is an apocalyptic number.

It is an amenable number.

389579525 is a deficient number, since it is larger than the sum of its proper divisors (93499117).

389579525 is a wasteful number, since it uses less digits than its factorization.

389579525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15583191 (or 15583186 counting only the distinct ones).

The product of its digits is 3402000, while the sum is 53.

The square root of 389579525 is about 19737.7689975336. The cubic root of 389579525 is about 730.3516945502.

The spelling of 389579525 in words is "three hundred eighty-nine million, five hundred seventy-nine thousand, five hundred twenty-five".