82880155 has 8 divisors (see below), whose sum is σ = 103780512. Its totient is φ = 63421248.

The previous prime is 82880123. The next prime is 82880177. The reversal of 82880155 is 55108828.

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 82880155 - 2⁵ = 82880123 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 360234 + ... + 360463.

It is an arithmetic number, because the mean of its divisors is an integer number (12972564).

Almost surely, 2^82880155 is an apocalyptic number.

82880155 is a deficient number, since it is larger than the sum of its proper divisors (20900357).

82880155 is a wasteful number, since it uses less digits than its factorization.

82880155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720725.

The product of its (nonzero) digits is 25600, while the sum is 37.

The square root of 82880155 is about 9103.8538542751. The cubic root of 82880155 is about 435.9970172761.

The spelling of 82880155 in words is "eighty-two million, eight hundred eighty thousand, one hundred fifty-five".