198070025 has 6 divisors (see below), whose sum is σ = 245606862. Its totient is φ = 158456000.

The previous prime is 198070013. The next prime is 198070027. The reversal of 198070025 is 520070891.

It can be written as a sum of positive squares in 3 ways, for example, as 48841 + 198021184 = 221^2 + 14072^2 .

It is not a de Polignac number, because 198070025 - 2⁶ = 198069961 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 198069973 and 198070000.

It is not an unprimeable number, because it can be changed into a prime (198070027) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3961376 + ... + 3961425.

It is an arithmetic number, because the mean of its divisors is an integer number (40934477).

Almost surely, 2^198070025 is an apocalyptic number.

It is an amenable number.

198070025 is a deficient number, since it is larger than the sum of its proper divisors (47536837).

198070025 is an equidigital number, since it uses as much as digits as its factorization.

198070025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7922811 (or 7922806 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 198070025 is about 14073.7352895385. The cubic root of 198070025 is about 582.9163705095.

The spelling of 198070025 in words is "one hundred ninety-eight million, seventy thousand, twenty-five".