27525782505 has 48 divisors (see below), whose sum is σ = 50056816320. Its totient is φ = 12837902976.

The previous prime is 27525782503. The next prime is 27525782507. The reversal of 27525782505 is 50528752572.

It is an interprime number because it is at equal distance from previous prime (27525782503) and next prime (27525782507).

It is not a de Polignac number, because 27525782505 - 2¹ = 27525782503 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (27525782503) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 125115 + ... + 265904.

It is an arithmetic number, because the mean of its divisors is an integer number (1042850340).

Almost surely, 2^27525782505 is an apocalyptic number.

It is an amenable number.

27525782505 is a deficient number, since it is larger than the sum of its proper divisors (22531033815).

27525782505 is a wasteful number, since it uses less digits than its factorization.

27525782505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391078 (or 391059 counting only the distinct ones).

The product of its (nonzero) digits is 1960000, while the sum is 48.

The spelling of 27525782505 in words is "twenty-seven billion, five hundred twenty-five million, seven hundred eighty-two thousand, five hundred five".