389082775225 has 9 divisors (see below), whose sum is σ = 482466508653. Its totient is φ = 311263725120.

The previous prime is 389082775217. The next prime is 389082775247. The reversal of 389082775225 is 522577280983.

The square root of 389082775225 is 623765.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 115265003049 + 273817772176 = 339507^2 + 523276^2 .

It is not a de Polignac number, because 389082775225 - 2³ = 389082775217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 389082775225.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3056449 + ... + 3181201.

Almost surely, 2^389082775225 is an apocalyptic number.

389082775225 is the 623765-th square number.

389082775225 is the 311883-rd centered octagonal number.

It is an amenable number.

389082775225 is a deficient number, since it is larger than the sum of its proper divisors (93383733428).

389082775225 is an frugal number, since it uses more digits than its factorization.

389082775225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249516 (or 124758 counting only the distinct ones).

The product of its (nonzero) digits is 16934400, while the sum is 58.

The spelling of 389082775225 in words is "three hundred eighty-nine billion, eighty-two million, seven hundred seventy-five thousand, two hundred twenty-five".