82450261 has 2 divisors, whose sum is σ = 82450262. Its totient is φ = 82450260.

The previous prime is 82450229. The next prime is 82450271. The reversal of 82450261 is 16205428.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62110161 + 20340100 = 7881^2 + 4510^2 .

It is a cyclic number.

It is not a de Polignac number, because 82450261 - 2⁵ = 82450229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82450201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41225130 + 41225131.

It is an arithmetic number, because the mean of its divisors is an integer number (41225131).

Almost surely, 2^82450261 is an apocalyptic number.

It is an amenable number.

82450261 is a deficient number, since it is larger than the sum of its proper divisors (1).

82450261 is an equidigital number, since it uses as much as digits as its factorization.

82450261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 82450261 is about 9080.2126076431. The cubic root of 82450261 is about 435.2418807155.

Adding to 82450261 its reverse (16205428), we get a palindrome (98655689).

The spelling of 82450261 in words is "eighty-two million, four hundred fifty thousand, two hundred sixty-one".