25052544422515 has 16 divisors (see below), whose sum is σ = 30092570742240. Its totient is φ = 20022359822080.

The previous prime is 25052544422501. The next prime is 25052544422519. The reversal of 25052544422515 is 51522444525052.

It is a happy number.

It is not a de Polignac number, because 25052544422515 - 2¹¹ = 25052544420467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25052544422519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81787545 + ... + 82093285.

It is an arithmetic number, because the mean of its divisors is an integer number (1880785671390).

Almost surely, 2^{25052544422515} is an apocalyptic number.

25052544422515 is a deficient number, since it is larger than the sum of its proper divisors (5040026319725).

25052544422515 is a wasteful number, since it uses less digits than its factorization.

25052544422515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321782.

The product of its (nonzero) digits is 3200000, while the sum is 46.

Adding to 25052544422515 its reverse (51522444525052), we get a palindrome (76574988947567).

The spelling of 25052544422515 in words is "twenty-five trillion, fifty-two billion, five hundred forty-four million, four hundred twenty-two thousand, five hundred fifteen".