65701001 has 4 divisors (see below), whose sum is σ = 65726100. Its totient is φ = 65675904.

The previous prime is 65700967. The next prime is 65701003. The reversal of 65701001 is 10010756.

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

It can be written as a sum of positive squares in 2 ways, for example, as 28783225 + 36917776 = 5365^2 + 6076^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65701001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65701003) 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, 8096 + ... + 14033.

It is an arithmetic number, because the mean of its divisors is an integer number (16431525).

Almost surely, 2^65701001 is an apocalyptic number.

It is an amenable number.

65701001 is a deficient number, since it is larger than the sum of its proper divisors (25099).

65701001 is a wasteful number, since it uses less digits than its factorization.

65701001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25098.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 65701001 is about 8105.6153992155. The cubic root of 65701001 is about 403.5128121528.

Adding to 65701001 its reverse (10010756), we get a palindrome (75711757).

The spelling of 65701001 in words is "sixty-five million, seven hundred one thousand, one".