82326561 has 16 divisors (see below), whose sum is σ = 111606144. Its totient is φ = 53973504.

The previous prime is 82326547. The next prime is 82326571. The reversal of 82326561 is 16562328.

It is not a de Polignac number, because 82326561 - 2¹¹ = 82324513 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (82326511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47665 + ... + 49361.

It is an arithmetic number, because the mean of its divisors is an integer number (6975384).

Almost surely, 2^82326561 is an apocalyptic number.

It is an amenable number.

82326561 is a deficient number, since it is larger than the sum of its proper divisors (29279583).

82326561 is a wasteful number, since it uses less digits than its factorization.

82326561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1960.

The product of its digits is 17280, while the sum is 33.

The square root of 82326561 is about 9073.3985363810. The cubic root of 82326561 is about 435.0241075291.

Adding to 82326561 its reverse (16562328), we get a palindrome (98888889).

It can be divided in two parts, 8232 and 6561, that multiplied together give a cube (54010152 = 378³).

The spelling of 82326561 in words is "eighty-two million, three hundred twenty-six thousand, five hundred sixty-one".