25011113025242 has 4 divisors (see below), whose sum is σ = 37516669537866. Its totient is φ = 12505556512620.

The previous prime is 25011113025191. The next prime is 25011113025257. The reversal of 25011113025242 is 24252031111052.

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

It can be written as a sum of positive squares in only one way, i.e., 18170005991641 + 6841107033601 = 4262629^2 + 2615551^2 .

It is a super-2 number, since 2×25011113025242² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6252778256309 + ... + 6252778256312.

Almost surely, 2^{25011113025242} is an apocalyptic number.

25011113025242 is a deficient number, since it is larger than the sum of its proper divisors (12505556512624).

25011113025242 is a wasteful number, since it uses less digits than its factorization.

25011113025242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12505556512623.

The product of its (nonzero) digits is 4800, while the sum is 29.

Adding to 25011113025242 its reverse (24252031111052), we get a palindrome (49263144136294).

The spelling of 25011113025242 in words is "twenty-five trillion, eleven billion, one hundred thirteen million, twenty-five thousand, two hundred forty-two".