82216252 has 6 divisors (see below), whose sum is σ = 143878448. Its totient is φ = 41108124.

The previous prime is 82216241. The next prime is 82216261. The reversal of 82216252 is 25261228.

It is a self number, because there is not a number n which added to its sum of digits gives 82216252.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10277028 + ... + 10277035.

Almost surely, 2^82216252 is an apocalyptic number.

It is an amenable number.

82216252 is a deficient number, since it is larger than the sum of its proper divisors (61662196).

82216252 is a wasteful number, since it uses less digits than its factorization.

82216252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20554067 (or 20554065 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

The square root of 82216252 is about 9067.3177952468. The cubic root of 82216252 is about 434.8297250510.

The spelling of 82216252 in words is "eighty-two million, two hundred sixteen thousand, two hundred fifty-two".