82029505 has 16 divisors (see below), whose sum is σ = 105310800. Its totient is φ = 61120512.

The previous prime is 82029491. The next prime is 82029527. The reversal of 82029505 is 50592028.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 256 + 82029249 = 16^2 + 9057^2 .

It is a cyclic number.

It is not a de Polignac number, because 82029505 - 2⁷ = 82029377 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3271 + ... + 13219.

It is an arithmetic number, because the mean of its divisors is an integer number (6581925).

Almost surely, 2^82029505 is an apocalyptic number.

82029505 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

82029505 is a deficient number, since it is larger than the sum of its proper divisors (23281295).

82029505 is a wasteful number, since it uses less digits than its factorization.

82029505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10068.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 82029505 is about 9057.0141327040. The cubic root of 82029505 is about 434.5002496155.

The spelling of 82029505 in words is "eighty-two million, twenty-nine thousand, five hundred five".