65542859 has 4 divisors (see below), whose sum is σ = 66332616. Its totient is φ = 64753104.

The previous prime is 65542849. The next prime is 65542907. The reversal of 65542859 is 95824556.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65542859 - 2¹⁶ = 65477323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65542849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 394754 + ... + 394919.

It is an arithmetic number, because the mean of its divisors is an integer number (16583154).

Almost surely, 2^65542859 is an apocalyptic number.

65542859 is a deficient number, since it is larger than the sum of its proper divisors (789757).

65542859 is an equidigital number, since it uses as much as digits as its factorization.

65542859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789756.

The product of its digits is 432000, while the sum is 44.

The square root of 65542859 is about 8095.8544329799. The cubic root of 65542859 is about 403.1888009029.

The spelling of 65542859 in words is "sixty-five million, five hundred forty-two thousand, eight hundred fifty-nine".