82575247 has 2 divisors, whose sum is σ = 82575248. Its totient is φ = 82575246.

The previous prime is 82575223. The next prime is 82575257. The reversal of 82575247 is 74257528.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82575247 is a prime.

It is a super-2 number, since 2×82575247² = 13637342834222018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82575257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41287623 + 41287624.

It is an arithmetic number, because the mean of its divisors is an integer number (41287624).

Almost surely, 2^82575247 is an apocalyptic number.

82575247 is a deficient number, since it is larger than the sum of its proper divisors (1).

82575247 is an equidigital number, since it uses as much as digits as its factorization.

82575247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 156800, while the sum is 40.

The square root of 82575247 is about 9087.0923292327. The cubic root of 82575247 is about 435.4616967854.

The spelling of 82575247 in words is "eighty-two million, five hundred seventy-five thousand, two hundred forty-seven".