82551125 has 8 divisors (see below), whose sum is σ = 103023960. Its totient is φ = 66040800.

The previous prime is 82551121. The next prime is 82551151. The reversal of 82551125 is 52115528.

It can be written as a sum of positive squares in 4 ways, for example, as 4104676 + 78446449 = 2026^2 + 8857^2 .

It is not a de Polignac number, because 82551125 - 2² = 82551121 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82551121) 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, 330080 + ... + 330329.

It is an arithmetic number, because the mean of its divisors is an integer number (12877995).

Almost surely, 2^82551125 is an apocalyptic number.

It is an amenable number.

82551125 is a deficient number, since it is larger than the sum of its proper divisors (20472835).

82551125 is an equidigital number, since it uses as much as digits as its factorization.

82551125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660424 (or 660414 counting only the distinct ones).

The product of its digits is 4000, while the sum is 29.

The square root of 82551125 is about 9085.7649650428. The cubic root of 82551125 is about 435.4192900900.

The spelling of 82551125 in words is "eighty-two million, five hundred fifty-one thousand, one hundred twenty-five".