25000842 has 32 divisors (see below), whose sum is σ = 52721280. Its totient is φ = 7891520.

The previous prime is 25000841. The next prime is 25000853. The reversal of 25000842 is 24800052.

It is not an unprimeable number, because it can be changed into a prime (25000841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7867 + ... + 10577.

It is an arithmetic number, because the mean of its divisors is an integer number (1647540).

Almost surely, 2^25000842 is an apocalyptic number.

25000842 is an abundant number, since it is smaller than the sum of its proper divisors (27720438).

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

25000842 is a wasteful number, since it uses less digits than its factorization.

25000842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2798.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 25000842 is about 5000.0841992910. The cubic root of 25000842 is about 292.4050564817.

Adding to 25000842 its reverse (24800052), we get a palindrome (49800894).

The spelling of 25000842 in words is "twenty-five million, eight hundred forty-two", and thus it is an aban number.