25500238 has 16 divisors (see below), whose sum is σ = 42262560. Its totient is φ = 11478016.

The previous prime is 25500229. The next prime is 25500239. The reversal of 25500238 is 83200552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25500239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15523 + ... + 17086.

It is an arithmetic number, because the mean of its divisors is an integer number (2641410).

Almost surely, 2^25500238 is an apocalyptic number.

25500238 is a deficient number, since it is larger than the sum of its proper divisors (16762322).

25500238 is a wasteful number, since it uses less digits than its factorization.

25500238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32651.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 25500238 is about 5049.7760346376. The cubic root of 25500238 is about 294.3391815604.

The spelling of 25500238 in words is "twenty-five million, five hundred thousand, two hundred thirty-eight".