25229838 has 8 divisors (see below), whose sum is σ = 50459688. Its totient is φ = 8409944.

The previous prime is 25229833. The next prime is 25229839. The reversal of 25229838 is 83892252.

It is a sphenic number, since it is the product of 3 distinct primes.

25229838 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 25229796 and 25229805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25229833) 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 3 ways as a sum of consecutive naturals, for example, 2102481 + ... + 2102492.

It is an arithmetic number, because the mean of its divisors is an integer number (6307461).

Almost surely, 2^25229838 is an apocalyptic number.

25229838 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25229838 is a wasteful number, since it uses less digits than its factorization.

25229838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4204978.

The product of its digits is 69120, while the sum is 39.

The square root of 25229838 is about 5022.9312159336. The cubic root of 25229838 is about 293.2951089425.

The spelling of 25229838 in words is "twenty-five million, two hundred twenty-nine thousand, eight hundred thirty-eight".