239378525 has 6 divisors (see below), whose sum is σ = 296829402. Its totient is φ = 191502800.

The previous prime is 239378423. The next prime is 239378533. The reversal of 239378525 is 525873932.

It can be written as a sum of positive squares in 3 ways, for example, as 48413764 + 190964761 = 6958^2 + 13819^2 .

It is not a de Polignac number, because 239378525 - 2¹⁶ = 239312989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4787546 + ... + 4787595.

It is an arithmetic number, because the mean of its divisors is an integer number (49471567).

Almost surely, 2^239378525 is an apocalyptic number.

239378525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

239378525 is a deficient number, since it is larger than the sum of its proper divisors (57450877).

239378525 is an equidigital number, since it uses as much as digits as its factorization.

239378525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9575151 (or 9575146 counting only the distinct ones).

The product of its digits is 453600, while the sum is 44.

The square root of 239378525 is about 15471.8623636587. The cubic root of 239378525 is about 620.9096299288.

The spelling of 239378525 in words is "two hundred thirty-nine million, three hundred seventy-eight thousand, five hundred twenty-five".