82212052 has 24 divisors (see below), whose sum is σ = 158721192. Its totient is φ = 37017600.

The previous prime is 82212043. The next prime is 82212083. The reversal of 82212052 is 25021228.

It can be written as a sum of positive squares in 4 ways, for example, as 4137156 + 78074896 = 2034^2 + 8836^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17149 + ... + 21412.

It is an arithmetic number, because the mean of its divisors is an integer number (6613383).

Almost surely, 2^82212052 is an apocalyptic number.

82212052 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

82212052 is a deficient number, since it is larger than the sum of its proper divisors (76509140).

82212052 is a wasteful number, since it uses less digits than its factorization.

82212052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38619 (or 38617 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 82212052 is about 9067.0861912745. The cubic root of 82212052 is about 434.8223205298.

The spelling of 82212052 in words is "eighty-two million, two hundred twelve thousand, fifty-two".