82505755 has 4 divisors (see below), whose sum is σ = 99006912. Its totient is φ = 66004600.

The previous prime is 82505749. The next prime is 82505779. The reversal of 82505755 is 55750528.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 82505755 - 2¹⁵ = 82472987 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8250571 + ... + 8250580.

It is an arithmetic number, because the mean of its divisors is an integer number (24751728).

Almost surely, 2^82505755 is an apocalyptic number.

82505755 is a deficient number, since it is larger than the sum of its proper divisors (16501157).

82505755 is a wasteful number, since it uses less digits than its factorization.

82505755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16501156.

The product of its (nonzero) digits is 70000, while the sum is 37.

The square root of 82505755 is about 9083.2678590912. The cubic root of 82505755 is about 435.3395068308.

The spelling of 82505755 in words is "eighty-two million, five hundred five thousand, seven hundred fifty-five".