82961325 has 18 divisors (see below), whose sum is σ = 148593354. Its totient is φ = 44245920.

The previous prime is 82961321. The next prime is 82961339. The reversal of 82961325 is 52316928.

It can be written as a sum of positive squares in 3 ways, for example, as 114921 + 82846404 = 339^2 + 9102^2 .

It is not a de Polignac number, because 82961325 - 2² = 82961321 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82961325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82961321) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 184134 + ... + 184583.

Almost surely, 2^82961325 is an apocalyptic number.

It is an amenable number.

82961325 is a deficient number, since it is larger than the sum of its proper divisors (65632029).

82961325 is a wasteful number, since it uses less digits than its factorization.

82961325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368733 (or 368725 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 82961325 is about 9108.3107654493. The cubic root of 82961325 is about 436.1393043771.

The spelling of 82961325 in words is "eighty-two million, nine hundred sixty-one thousand, three hundred twenty-five".