238857025 has 27 divisors (see below), whose sum is σ = 326718889. Its totient is φ = 173096000.

The previous prime is 238857023. The next prime is 238857049. The reversal of 238857025 is 520758832.

The square root of 238857025 is 15455.

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

238857025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 339889 + 238517136 = 583^2 + 15444^2 .

It is not a de Polignac number, because 238857025 - 2¹ = 238857023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (238857023) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 849885 + ... + 850165.

Almost surely, 2^238857025 is an apocalyptic number.

238857025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

238857025 is the 15455-th square number.

238857025 is the 7728-th centered octagonal number.

It is an amenable number.

238857025 is a deficient number, since it is larger than the sum of its proper divisors (87861864).

238857025 is an equidigital number, since it uses as much as digits as its factorization.

238857025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594 (or 297 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 40.

The cubic root of 238857025 is about 620.4584062177.

The spelling of 238857025 in words is "two hundred thirty-eight million, eight hundred fifty-seven thousand, twenty-five".