82815522 has 8 divisors (see below), whose sum is σ = 165631056. Its totient is φ = 27605172.

The previous prime is 82815511. The next prime is 82815529. The reversal of 82815522 is 22551828.

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

82815522 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (82815529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6901288 + ... + 6901299.

It is an arithmetic number, because the mean of its divisors is an integer number (20703882).

Almost surely, 2^82815522 is an apocalyptic number.

82815522 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82815522 is a wasteful number, since it uses less digits than its factorization.

82815522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13802592.

The product of its digits is 12800, while the sum is 33.

The square root of 82815522 is about 9100.3034015356. The cubic root of 82815522 is about 435.8836522870.

The spelling of 82815522 in words is "eighty-two million, eight hundred fifteen thousand, five hundred twenty-two".