82475251 has 2 divisors, whose sum is σ = 82475252. Its totient is φ = 82475250.

The previous prime is 82475249. The next prime is 82475297. The reversal of 82475251 is 15257428.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82475251 - 2¹ = 82475249 is a prime.

Together with 82475249, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (82475201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41237625 + 41237626.

It is an arithmetic number, because the mean of its divisors is an integer number (41237626).

Almost surely, 2^82475251 is an apocalyptic number.

82475251 is a deficient number, since it is larger than the sum of its proper divisors (1).

82475251 is an equidigital number, since it uses as much as digits as its factorization.

82475251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22400, while the sum is 34.

The square root of 82475251 is about 9081.5885724910. The cubic root of 82475251 is about 435.2858490255.

The spelling of 82475251 in words is "eighty-two million, four hundred seventy-five thousand, two hundred fifty-one".