65885535 has 32 divisors (see below), whose sum is σ = 121176000. Its totient is φ = 33925248.

The previous prime is 65885531. The next prime is 65885539. The reversal of 65885535 is 53558856.

It is an interprime number because it is at equal distance from previous prime (65885531) and next prime (65885539).

It is not a de Polignac number, because 65885535 - 2² = 65885531 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65885531) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4500 + ... + 12329.

It is an arithmetic number, because the mean of its divisors is an integer number (3786750).

Almost surely, 2^65885535 is an apocalyptic number.

65885535 is a deficient number, since it is larger than the sum of its proper divisors (55290465).

65885535 is a wasteful number, since it uses less digits than its factorization.

65885535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16872 (or 16866 counting only the distinct ones).

The product of its digits is 720000, while the sum is 45.

The square root of 65885535 is about 8116.9905137311. The cubic root of 65885535 is about 403.8902403362.

The spelling of 65885535 in words is "sixty-five million, eight hundred eighty-five thousand, five hundred thirty-five".