82522257 has 8 divisors (see below), whose sum is σ = 110213376. Its totient is φ = 54922992.

The previous prime is 82522243. The next prime is 82522273. The reversal of 82522257 is 75222528.

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

It is not a de Polignac number, because 82522257 - 2⁴ = 82522241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82522207) 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, 20838 + ... + 24479.

It is an arithmetic number, because the mean of its divisors is an integer number (13776672).

Almost surely, 2^82522257 is an apocalyptic number.

It is an amenable number.

82522257 is a deficient number, since it is larger than the sum of its proper divisors (27691119).

82522257 is a wasteful number, since it uses less digits than its factorization.

82522257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45927.

The product of its digits is 22400, while the sum is 33.

The square root of 82522257 is about 9084.1761871950. The cubic root of 82522257 is about 435.3685290230.

The spelling of 82522257 in words is "eighty-two million, five hundred twenty-two thousand, two hundred fifty-seven".