82265531 has 2 divisors, whose sum is σ = 82265532. Its totient is φ = 82265530.

The previous prime is 82265483. The next prime is 82265539. The reversal of 82265531 is 13556228.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82265531 - 2¹⁴ = 82249147 is a prime.

It is a super-2 number, since 2×82265531² = 13535235181423922, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (82265539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41132765 + 41132766.

It is an arithmetic number, because the mean of its divisors is an integer number (41132766).

Almost surely, 2^82265531 is an apocalyptic number.

82265531 is a deficient number, since it is larger than the sum of its proper divisors (1).

82265531 is an equidigital number, since it uses as much as digits as its factorization.

82265531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14400, while the sum is 32.

The square root of 82265531 is about 9070.0347849388. The cubic root of 82265531 is about 434.9165841725.

The spelling of 82265531 in words is "eighty-two million, two hundred sixty-five thousand, five hundred thirty-one".