25115010542445 has 64 divisors (see below), whose sum is σ = 42030643691520. Its totient is φ = 12793443844608.

The previous prime is 25115010542443. The next prime is 25115010542467. The reversal of 25115010542445 is 54424501051152.

It is not a de Polignac number, because 25115010542445 - 2¹ = 25115010542443 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25115010542443) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 33858732 + ... + 34592538.

It is an arithmetic number, because the mean of its divisors is an integer number (656728807680).

Almost surely, 2^{25115010542445} is an apocalyptic number.

It is an amenable number.

25115010542445 is a deficient number, since it is larger than the sum of its proper divisors (16915633149075).

25115010542445 is a wasteful number, since it uses less digits than its factorization.

25115010542445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735034.

The product of its (nonzero) digits is 160000, while the sum is 39.

Adding to 25115010542445 its reverse (54424501051152), we get a palindrome (79539511593597).

The spelling of 25115010542445 in words is "twenty-five trillion, one hundred fifteen billion, ten million, five hundred forty-two thousand, four hundred forty-five".