25284738 has 8 divisors (see below), whose sum is σ = 50569488. Its totient is φ = 8428244.

The previous prime is 25284719. The next prime is 25284739. The reversal of 25284738 is 83748252.

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

25284738 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 25284696 and 25284705.

It is not an unprimeable number, because it can be changed into a prime (25284739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2107056 + ... + 2107067.

It is an arithmetic number, because the mean of its divisors is an integer number (6321186).

Almost surely, 2^25284738 is an apocalyptic number.

25284738 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.

25284738 is a wasteful number, since it uses less digits than its factorization.

25284738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4214128.

The product of its digits is 107520, while the sum is 39.

The square root of 25284738 is about 5028.3931827175. The cubic root of 25284738 is about 293.5076910495.

The spelling of 25284738 in words is "twenty-five million, two hundred eighty-four thousand, seven hundred thirty-eight".