25535542303145 has 16 divisors (see below), whose sum is σ = 35680930272000. Its totient is φ = 17179707165504.

The previous prime is 25535542303127. The next prime is 25535542303151. The reversal of 25535542303145 is 54130324553552.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 25535542303145 - 2¹⁶ = 25535542237609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25535542303145.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6882893645 + ... + 6882897354.

It is an arithmetic number, because the mean of its divisors is an integer number (2230058142000).

Almost surely, 2^{25535542303145} is an apocalyptic number.

It is an amenable number.

25535542303145 is a deficient number, since it is larger than the sum of its proper divisors (10145387968855).

25535542303145 is a wasteful number, since it uses less digits than its factorization.

25535542303145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13765791064.

The product of its (nonzero) digits is 5400000, while the sum is 47.

Adding to 25535542303145 its reverse (54130324553552), we get a palindrome (79665866856697).

The spelling of 25535542303145 in words is "twenty-five trillion, five hundred thirty-five billion, five hundred forty-two million, three hundred three thousand, one hundred forty-five".