82542705 has 24 divisors (see below), whose sum is σ = 153631872. Its totient is φ = 37733472.

The previous prime is 82542703. The next prime is 82542709. The reversal of 82542705 is 50724528.

It is not a de Polignac number, because 82542705 - 2¹ = 82542703 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82542703) 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, 55417 + ... + 56886.

It is an arithmetic number, because the mean of its divisors is an integer number (6401328).

Almost surely, 2^82542705 is an apocalyptic number.

It is an amenable number.

82542705 is a deficient number, since it is larger than the sum of its proper divisors (71089167).

82542705 is a wasteful number, since it uses less digits than its factorization.

82542705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112325 (or 112318 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 33.

The square root of 82542705 is about 9085.3015910315. The cubic root of 82542705 is about 435.4044857083.

The spelling of 82542705 in words is "eighty-two million, five hundred forty-two thousand, seven hundred five".