25352052274505 has 64 divisors (see below), whose sum is σ = 34229737479168. Its totient is φ = 17866363656960.

The previous prime is 25352052274463. The next prime is 25352052274543. The reversal of 25352052274505 is 50547225025352.

It is not a de Polignac number, because 25352052274505 - 2¹⁰ = 25352052273481 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 25352052274505.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 238696022 + ... + 238802208.

It is an arithmetic number, because the mean of its divisors is an integer number (534839648112).

Almost surely, 2^{25352052274505} is an apocalyptic number.

It is an amenable number.

25352052274505 is a deficient number, since it is larger than the sum of its proper divisors (8877685204663).

25352052274505 is a wasteful number, since it uses less digits than its factorization.

25352052274505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107046.

The product of its (nonzero) digits is 4200000, while the sum is 47.

Adding to 25352052274505 its reverse (50547225025352), we get a palindrome (75899277299857).

The spelling of 25352052274505 in words is "twenty-five trillion, three hundred fifty-two billion, fifty-two million, two hundred seventy-four thousand, five hundred five".