25000042 has 8 divisors (see below), whose sum is σ = 37605600. Its totient is φ = 12464844.

The previous prime is 25000033. The next prime is 25000069. The reversal of 25000042 is 24000052.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 24999986 and 25000031.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16692 + ... + 18127.

It is an arithmetic number, because the mean of its divisors is an integer number (4700700).

Almost surely, 2^25000042 is an apocalyptic number.

25000042 is a deficient number, since it is larger than the sum of its proper divisors (12605558).

25000042 is a wasteful number, since it uses less digits than its factorization.

25000042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35180.

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 25000042 is about 5000.0041999982. The cubic root of 25000042 is about 292.4019375662.

Adding to 25000042 its reverse (24000052), we get a palindrome (49000094).

The spelling of 25000042 in words is "twenty-five million, forty-two", and thus it is an aban number and an uban number.