82555919 has 8 divisors (see below), whose sum is σ = 85731072. Its totient is φ = 79436160.

The previous prime is 82555897. The next prime is 82555951. The reversal of 82555919 is 91955528.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82555919 is a prime.

It is a super-2 number, since 2×82555919² = 13630959523869122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82555919.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82555819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10799 + ... + 16784.

It is an arithmetic number, because the mean of its divisors is an integer number (10716384).

Almost surely, 2^82555919 is an apocalyptic number.

82555919 is a deficient number, since it is larger than the sum of its proper divisors (3175153).

82555919 is a wasteful number, since it uses less digits than its factorization.

82555919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27697.

The product of its digits is 162000, while the sum is 44.

The square root of 82555919 is about 9086.0287804959. The cubic root of 82555919 is about 435.4277186433.

The spelling of 82555919 in words is "eighty-two million, five hundred fifty-five thousand, nine hundred nineteen".