65542611 has 4 divisors (see below), whose sum is σ = 87390152. Its totient is φ = 43695072.

The previous prime is 65542597. The next prime is 65542613. The reversal of 65542611 is 11624556.

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

It is not a de Polignac number, because 65542611 - 2²² = 61348307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65542613) 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, 10923766 + ... + 10923771.

It is an arithmetic number, because the mean of its divisors is an integer number (21847538).

Almost surely, 2^65542611 is an apocalyptic number.

65542611 is a deficient number, since it is larger than the sum of its proper divisors (21847541).

65542611 is a wasteful number, since it uses less digits than its factorization.

65542611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21847540.

The product of its digits is 7200, while the sum is 30.

The square root of 65542611 is about 8095.8391164845. The cubic root of 65542611 is about 403.1882923759.

The spelling of 65542611 in words is "sixty-five million, five hundred forty-two thousand, six hundred eleven".