82857125 has 16 divisors (see below), whose sum is σ = 111362160. Its totient is φ = 61185600.

The previous prime is 82857077. The next prime is 82857149. The reversal of 82857125 is 52175828.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 41357761 + 41499364 = 6431^2 + 6442^2 .

It is not a de Polignac number, because 82857125 - 2²² = 78662821 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23870 + ... + 27119.

It is an arithmetic number, because the mean of its divisors is an integer number (6960135).

Almost surely, 2^82857125 is an apocalyptic number.

It is an amenable number.

82857125 is a deficient number, since it is larger than the sum of its proper divisors (28505035).

82857125 is a wasteful number, since it uses less digits than its factorization.

82857125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51017 (or 51007 counting only the distinct ones).

The product of its digits is 44800, while the sum is 38.

The square root of 82857125 is about 9102.5889174454. The cubic root of 82857125 is about 435.9566298778.

The spelling of 82857125 in words is "eighty-two million, eight hundred fifty-seven thousand, one hundred twenty-five".