25505280007528 has 16 divisors (see below), whose sum is σ = 47976169793760. Its totient is φ = 12711634729200.

The previous prime is 25505280007517. The next prime is 25505280007547. The reversal of 25505280007528 is 82570008250552.

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 3 ways as a sum of consecutive naturals, for example, 5125656678 + ... + 5125661653.

It is an arithmetic number, because the mean of its divisors is an integer number (2998510612110).

Almost surely, 2^{25505280007528} is an apocalyptic number.

It is an amenable number.

25505280007528 is a deficient number, since it is larger than the sum of its proper divisors (22470889786232).

25505280007528 is a wasteful number, since it uses less digits than its factorization.

25505280007528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10251318648 (or 10251318644 counting only the distinct ones).

The product of its (nonzero) digits is 2240000, while the sum is 49.

The spelling of 25505280007528 in words is "twenty-five trillion, five hundred five billion, two hundred eighty million, seven thousand, five hundred twenty-eight".