239651025 has 12 divisors (see below), whose sum is σ = 396223152. Its totient is φ = 127813840.

The previous prime is 239651017. The next prime is 239651029. The reversal of 239651025 is 520156932.

It is not a de Polignac number, because 239651025 - 2³ = 239651017 is a prime.

It is a super-2 number, since 2×239651025² = 114865227567101250, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (239651029) 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, 1597599 + ... + 1597748.

It is an arithmetic number, because the mean of its divisors is an integer number (33018596).

Almost surely, 2^239651025 is an apocalyptic number.

239651025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

239651025 is a deficient number, since it is larger than the sum of its proper divisors (156572127).

239651025 is a wasteful number, since it uses less digits than its factorization.

239651025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3195360 (or 3195355 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 239651025 is about 15480.6661678366. Note that the first 3 decimals coincide. The cubic root of 239651025 is about 621.1451477302.

The spelling of 239651025 in words is "two hundred thirty-nine million, six hundred fifty-one thousand, twenty-five".