82540851 has 8 divisors (see below), whose sum is σ = 111697344. Its totient is φ = 54205800.

The previous prime is 82540811. The next prime is 82540853. The reversal of 82540851 is 15804528.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 82540851 - 2⁷ = 82540723 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (82540853) 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, 205125 + ... + 205526.

It is an arithmetic number, because the mean of its divisors is an integer number (13962168).

Almost surely, 2^82540851 is an apocalyptic number.

82540851 is a deficient number, since it is larger than the sum of its proper divisors (29156493).

82540851 is a wasteful number, since it uses less digits than its factorization.

82540851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410721.

The product of its (nonzero) digits is 12800, while the sum is 33.

The square root of 82540851 is about 9085.1995575221. The cubic root of 82540851 is about 435.4012257960.

The spelling of 82540851 in words is "eighty-two million, five hundred forty thousand, eight hundred fifty-one".