25275505527805 has 32 divisors (see below), whose sum is σ = 33427671742080. Its totient is φ = 18228562894080.

The previous prime is 25275505527803. The next prime is 25275505527847. The reversal of 25275505527805 is 50872550557252.

It is not a de Polignac number, because 25275505527805 - 2¹ = 25275505527803 is a prime.

It is a super-2 number, since 2×25275505527805² (a number of 28 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 25275505527805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25275505527803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21189750 + ... + 22350760.

It is an arithmetic number, because the mean of its divisors is an integer number (1044614741940).

Almost surely, 2^{25275505527805} is an apocalyptic number.

It is an amenable number.

25275505527805 is a deficient number, since it is larger than the sum of its proper divisors (8152166214275).

25275505527805 is a wasteful number, since it uses less digits than its factorization.

25275505527805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1168861.

The product of its (nonzero) digits is 49000000, while the sum is 58.

The spelling of 25275505527805 in words is "twenty-five trillion, two hundred seventy-five billion, five hundred five million, five hundred twenty-seven thousand, eight hundred five".