298394525025 has 135 divisors (see below), whose sum is σ = 564777503433. Its totient is φ = 155748225600.

The previous prime is 298394525017. The next prime is 298394525027. The reversal of 298394525025 is 520525493892.

It is a happy number.

The square root of 298394525025 is 546255.

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

298394525025 is a `hidden beast` number, since 2 + 9 + 8 + 3 + 94 + 525 + 0 + 25 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 137445923169 + 160948601856 = 370737^2 + 401184^2 .

It is a tau number, because it is divible by the number of its divisors (135).

It is not a de Polignac number, because 298394525025 - 2³ = 298394525017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (298394525027) by changing a digit.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 1499469876 + ... + 1499470074.

Almost surely, 2^298394525025 is an apocalyptic number.

298394525025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

298394525025 is the 546255-th square number.

298394525025 is the 273128-th centered octagonal number.

It is an amenable number.

298394525025 is a deficient number, since it is larger than the sum of its proper divisors (266382978408).

298394525025 is an frugal number, since it uses more digits than its factorization.

298394525025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542 (or 268 counting only the distinct ones).

The product of its (nonzero) digits is 7776000, while the sum is 54.

The spelling of 298394525025 in words is "two hundred ninety-eight billion, three hundred ninety-four million, five hundred twenty-five thousand, twenty-five".