82553771 has 8 divisors (see below), whose sum is σ = 85167120. Its totient is φ = 79960608.

The previous prime is 82553767. The next prime is 82553773. The reversal of 82553771 is 17735528.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 82553771 - 2² = 82553767 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82553773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3485 + ... + 13313.

It is an arithmetic number, because the mean of its divisors is an integer number (10645890).

Almost surely, 2^82553771 is an apocalyptic number.

82553771 is a deficient number, since it is larger than the sum of its proper divisors (2613349).

82553771 is a wasteful number, since it uses less digits than its factorization.

82553771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10093.

The product of its digits is 58800, while the sum is 38.

The square root of 82553771 is about 9085.9105762714. The cubic root of 82553771 is about 435.4239421854.

The spelling of 82553771 in words is "eighty-two million, five hundred fifty-three thousand, seven hundred seventy-one".