25280142 has 8 divisors (see below), whose sum is σ = 50560296. Its totient is φ = 8426712.

The previous prime is 25280137. The next prime is 25280153. The reversal of 25280142 is 24108252.

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

25280142 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2106673 + ... + 2106684.

It is an arithmetic number, because the mean of its divisors is an integer number (6320037).

Almost surely, 2^25280142 is an apocalyptic number.

25280142 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.

25280142 is a wasteful number, since it uses less digits than its factorization.

25280142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4213362.

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 25280142 is about 5027.9361571126. The cubic root of 25280142 is about 293.4899063673.

Adding to 25280142 its reverse (24108252), we get a palindrome (49388394).

The spelling of 25280142 in words is "twenty-five million, two hundred eighty thousand, one hundred forty-two".