25275274999485 has 64 divisors (see below), whose sum is σ = 47309638464000. Its totient is φ = 11517961437696.

The previous prime is 25275274999441. The next prime is 25275274999489. The reversal of 25275274999485 is 58499947257252.

It is not a de Polignac number, because 25275274999485 - 2⁷ = 25275274999357 is a prime.

It is a Smith number, since the sum of its digits (78) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 25275274999485.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25275274999489) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6117600 + ... + 9379529.

It is an arithmetic number, because the mean of its divisors is an integer number (739213101000).

Almost surely, 2^{25275274999485} is an apocalyptic number.

It is an amenable number.

25275274999485 is a deficient number, since it is larger than the sum of its proper divisors (22034363464515).

25275274999485 is a wasteful number, since it uses less digits than its factorization.

25275274999485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15497475 (or 15497461 counting only the distinct ones).

The product of its digits is 4572288000, while the sum is 78.

The spelling of 25275274999485 in words is "twenty-five trillion, two hundred seventy-five billion, two hundred seventy-four million, nine hundred ninety-nine thousand, four hundred eighty-five".