82553687 has 2 divisors, whose sum is σ = 82553688. Its totient is φ = 82553686.

The previous prime is 82553671. The next prime is 82553699. The reversal of 82553687 is 78635528.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82553687 - 2⁴ = 82553671 is a prime.

It is a super-2 number, since 2×82553687² = 13630222474587938, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82553287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41276843 + 41276844.

It is an arithmetic number, because the mean of its divisors is an integer number (41276844).

Almost surely, 2^82553687 is an apocalyptic number.

82553687 is a deficient number, since it is larger than the sum of its proper divisors (1).

82553687 is an equidigital number, since it uses as much as digits as its factorization.

82553687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 403200, while the sum is 44.

The square root of 82553687 is about 9085.9059537286. The cubic root of 82553687 is about 435.4237945014.

The spelling of 82553687 in words is "eighty-two million, five hundred fifty-three thousand, six hundred eighty-seven".