81952482 has 16 divisors (see below), whose sum is σ = 164067552. Its totient is φ = 27290400.

The previous prime is 81952471. The next prime is 81952513. The reversal of 81952482 is 28425918.

It is a self number, because there is not a number n which added to its sum of digits gives 81952482.

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, 357 + ... + 12807.

It is an arithmetic number, because the mean of its divisors is an integer number (10254222).

Almost surely, 2^81952482 is an apocalyptic number.

81952482 is an abundant number, since it is smaller than the sum of its proper divisors (82115070).

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

81952482 is a wasteful number, since it uses less digits than its factorization.

81952482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13553.

The product of its digits is 46080, while the sum is 39.

The square root of 81952482 is about 9052.7610152925. The cubic root of 81952482 is about 434.3642132270.

It can be divided in two parts, 819 and 52482, that added together give a triangular number (53301 = T₃₂₆).

The spelling of 81952482 in words is "eighty-one million, nine hundred fifty-two thousand, four hundred eighty-two".