82223531 has 8 divisors (see below), whose sum is σ = 88888800. Its totient is φ = 75606912.

The previous prime is 82223527. The next prime is 82223549. The reversal of 82223531 is 13532228.

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 82223531 - 2² = 82223527 is a prime.

It is a super-2 number, since 2×82223531² = 13521418100215922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 82223531.

It is not an unprimeable number, because it can be changed into a prime (82223131) 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, 8606 + ... + 15443.

It is an arithmetic number, because the mean of its divisors is an integer number (11111100).

Almost surely, 2^82223531 is an apocalyptic number.

82223531 is a deficient number, since it is larger than the sum of its proper divisors (6665269).

82223531 is a wasteful number, since it uses less digits than its factorization.

82223531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24325.

The product of its digits is 2880, while the sum is 26.

The square root of 82223531 is about 9067.7191729784. The cubic root of 82223531 is about 434.8425571943.

Adding to 82223531 its reverse (13532228), we get a palindrome (95755759).

The spelling of 82223531 in words is "eighty-two million, two hundred twenty-three thousand, five hundred thirty-one".