82859251 has 4 divisors (see below), whose sum is σ = 82914904. Its totient is φ = 82803600.

The previous prime is 82859239. The next prime is 82859281. The reversal of 82859251 is 15295828.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82859251 - 2⁷ = 82859123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82859281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25530 + ... + 28591.

It is an arithmetic number, because the mean of its divisors is an integer number (20728726).

Almost surely, 2^82859251 is an apocalyptic number.

82859251 is a deficient number, since it is larger than the sum of its proper divisors (55653).

82859251 is a wasteful number, since it uses less digits than its factorization.

82859251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55652.

The product of its digits is 57600, while the sum is 40.

The square root of 82859251 is about 9102.7056966596. The cubic root of 82859251 is about 435.9603585287.

The spelling of 82859251 in words is "eighty-two million, eight hundred fifty-nine thousand, two hundred fifty-one".