65542471 has 2 divisors, whose sum is σ = 65542472. Its totient is φ = 65542470.

The previous prime is 65542447. The next prime is 65542489. The reversal of 65542471 is 17424556.

65542471 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65542471 - 2⁵ = 65542439 is a prime.

It is a super-3 number, since 3×65542471³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65542171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32771235 + 32771236.

It is an arithmetic number, because the mean of its divisors is an integer number (32771236).

Almost surely, 2^65542471 is an apocalyptic number.

65542471 is a deficient number, since it is larger than the sum of its proper divisors (1).

65542471 is an equidigital number, since it uses as much as digits as its factorization.

65542471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 33600, while the sum is 34.

The square root of 65542471 is about 8095.8304700630. The cubic root of 65542471 is about 403.1880053036.

It can be divided in two parts, 6554 and 2471, that added together give a square (9025 = 95²).

The spelling of 65542471 in words is "sixty-five million, five hundred forty-two thousand, four hundred seventy-one".