82315550 has 12 divisors (see below), whose sum is σ = 153107016. Its totient is φ = 32926200.

The previous prime is 82315549. The next prime is 82315559. The reversal of 82315550 is 5551328.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82315559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 823106 + ... + 823205.

It is an arithmetic number, because the mean of its divisors is an integer number (12758918).

Almost surely, 2^82315550 is an apocalyptic number.

82315550 is a deficient number, since it is larger than the sum of its proper divisors (70791466).

82315550 is a wasteful number, since it uses less digits than its factorization.

82315550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1646323 (or 1646318 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 82315550 is about 9072.7917423470. The cubic root of 82315550 is about 435.0047121522.

Adding to 82315550 its reverse (5551328), we get a palindrome (87866878).

The spelling of 82315550 in words is "eighty-two million, three hundred fifteen thousand, five hundred fifty".