82773125 has 10 divisors (see below), whose sum is σ = 103434078. Its totient is φ = 66218000.

The previous prime is 82773091. The next prime is 82773133. The reversal of 82773125 is 52137728.

It can be written as a sum of positive squares in 5 ways, for example, as 13184161 + 69588964 = 3631^2 + 8342^2 .

It is not a de Polignac number, because 82773125 - 2⁸ = 82772869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 65594 + ... + 66843.

Almost surely, 2^82773125 is an apocalyptic number.

It is an amenable number.

82773125 is a deficient number, since it is larger than the sum of its proper divisors (20660953).

82773125 is an equidigital number, since it uses as much as digits as its factorization.

82773125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132457 (or 132442 counting only the distinct ones).

The product of its digits is 23520, while the sum is 35.

The square root of 82773125 is about 9097.9736754950. The cubic root of 82773125 is about 435.8092567580.

The spelling of 82773125 in words is "eighty-two million, seven hundred seventy-three thousand, one hundred twenty-five".