25072006 has 4 divisors (see below), whose sum is σ = 37608012. Its totient is φ = 12536002.

The previous prime is 25071983. The next prime is 25072013. The reversal of 25072006 is 60027052.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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 as a sum of consecutive naturals, namely, 6268000 + ... + 6268003.

It is an arithmetic number, because the mean of its divisors is an integer number (9402003).

Almost surely, 2^25072006 is an apocalyptic number.

25072006 is a deficient number, since it is larger than the sum of its proper divisors (12536006).

25072006 is a wasteful number, since it uses less digits than its factorization.

25072006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12536005.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 25072006 is about 5007.1954225894. The cubic root of 25072006 is about 292.6822338244.

Adding to 25072006 its reverse (60027052), we get a palindrome (85099058).

The spelling of 25072006 in words is "twenty-five million, seventy-two thousand, six".