25212136106 has 8 divisors (see below), whose sum is σ = 37839372480. Its totient is φ = 12599011948.

The previous prime is 25212136099. The next prime is 25212136111. The reversal of 25212136106 is 60163121252.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3523586 + ... + 3530733.

It is an arithmetic number, because the mean of its divisors is an integer number (4729921560).

Almost surely, 2^25212136106 is an apocalyptic number.

25212136106 is a deficient number, since it is larger than the sum of its proper divisors (12627236374).

25212136106 is a wasteful number, since it uses less digits than its factorization.

25212136106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7056108.

The product of its (nonzero) digits is 4320, while the sum is 29.

Adding to 25212136106 its reverse (60163121252), we get a palindrome (85375257358).

The spelling of 25212136106 in words is "twenty-five billion, two hundred twelve million, one hundred thirty-six thousand, one hundred six".