65530861 has 8 divisors (see below), whose sum is σ = 71547264. Its totient is φ = 59524320.

The previous prime is 65530853. The next prime is 65530877. The reversal of 65530861 is 16803556.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65530861 - 2³ = 65530853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65530561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22300 + ... + 25066.

It is an arithmetic number, because the mean of its divisors is an integer number (8943408).

Almost surely, 2^65530861 is an apocalyptic number.

It is an amenable number.

65530861 is a deficient number, since it is larger than the sum of its proper divisors (6016403).

65530861 is a wasteful number, since it uses less digits than its factorization.

65530861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4931.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 65530861 is about 8095.1134025411. The cubic root of 65530861 is about 403.1641973864.

The spelling of 65530861 in words is "sixty-five million, five hundred thirty thousand, eight hundred sixty-one".