81852058 has 16 divisors (see below), whose sum is σ = 124680960. Its totient is φ = 40294800.

The previous prime is 81852047. The next prime is 81852073. The reversal of 81852058 is 85025818.

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, 99288 + ... + 100108.

It is an arithmetic number, because the mean of its divisors is an integer number (7792560).

Almost surely, 2^81852058 is an apocalyptic number.

81852058 is a deficient number, since it is larger than the sum of its proper divisors (42828902).

81852058 is a wasteful number, since it uses less digits than its factorization.

81852058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1533.

The product of its (nonzero) digits is 25600, while the sum is 37.

The square root of 81852058 is about 9047.2127199486. The cubic root of 81852058 is about 434.1867184142.

The spelling of 81852058 in words is "eighty-one million, eight hundred fifty-two thousand, fifty-eight".