830289025 has 12 divisors (see below), whose sum is σ = 1031825452. Its totient is φ = 662768640.

The previous prime is 830289023. The next prime is 830289091. The reversal of 830289025 is 520982038.

It can be written as a sum of positive squares in 6 ways, for example, as 1540081 + 828748944 = 1241^2 + 28788^2 .

It is not a de Polignac number, because 830289025 - 2¹ = 830289023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (830289023) 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, 24912 + ... + 47761.

Almost surely, 2^830289025 is an apocalyptic number.

It is an amenable number.

830289025 is a deficient number, since it is larger than the sum of its proper divisors (201536427).

830289025 is a wasteful number, since it uses less digits than its factorization.

830289025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73140 (or 73135 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 830289025 is about 28814.7362472746. The cubic root of 830289025 is about 939.8887090968. Note that the first 3 decimals are identical.

The spelling of 830289025 in words is "eight hundred thirty million, two hundred eighty-nine thousand, twenty-five".