25275500078085 has 24 divisors (see below), whose sum is σ = 43992654649944. Its totient is φ = 13424331985920.

The previous prime is 25275500078083. The next prime is 25275500078089. The reversal of 25275500078085 is 58087000557252.

25275500078085 is a `hidden beast` number, since 2 + 5 + 2 + 7 + 550 + 0 + 0 + 7 + 8 + 0 + 85 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 131553466209 + 25143946611876 = 362703^2 + 5014374^2 .

It is not a de Polignac number, because 25275500078085 - 2¹ = 25275500078083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25275500078083) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1165295752 + ... + 1165317441.

It is an arithmetic number, because the mean of its divisors is an integer number (1833027277081).

Almost surely, 2^{25275500078085} is an apocalyptic number.

It is an amenable number.

25275500078085 is a deficient number, since it is larger than the sum of its proper divisors (18717154571859).

25275500078085 is a wasteful number, since it uses less digits than its factorization.

25275500078085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2330613445 (or 2330613442 counting only the distinct ones).

The product of its (nonzero) digits is 7840000, while the sum is 54.

The spelling of 25275500078085 in words is "twenty-five trillion, two hundred seventy-five billion, five hundred million, seventy-eight thousand, eighty-five".