82280061 has 6 divisors (see below), whose sum is σ = 118848990. Its totient is φ = 54853368.

The previous prime is 82280053. The next prime is 82280069. The reversal of 82280061 is 16008228.

It is an interprime number because it is at equal distance from previous prime (82280053) and next prime (82280069).

It can be written as a sum of positive squares in only one way, i.e., 48860100 + 33419961 = 6990^2 + 5781^2 .

It is not a de Polignac number, because 82280061 - 2³ = 82280053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82280069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4571106 + ... + 4571123.

It is an arithmetic number, because the mean of its divisors is an integer number (19808165).

Almost surely, 2^82280061 is an apocalyptic number.

It is an amenable number.

82280061 is a deficient number, since it is larger than the sum of its proper divisors (36568929).

82280061 is a wasteful number, since it uses less digits than its factorization.

82280061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9142235 (or 9142232 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 82280061 is about 9070.8357387839. The cubic root of 82280061 is about 434.9421881157.

Adding to 82280061 its reverse (16008228), we get a palindrome (98288289).

The spelling of 82280061 in words is "eighty-two million, two hundred eighty thousand, sixty-one".