65532919 has 8 divisors (see below), whose sum is σ = 69384240. Its totient is φ = 61721856.

The previous prime is 65532917. The next prime is 65532947. The reversal of 65532919 is 91923556.

It is a happy number.

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 65532919 - 2¹ = 65532917 is a prime.

It is a super-2 number, since 2×65532919² = 8589126945321122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65532913) 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, 6682 + ... + 13255.

It is an arithmetic number, because the mean of its divisors is an integer number (8673030).

Almost surely, 2^65532919 is an apocalyptic number.

65532919 is a deficient number, since it is larger than the sum of its proper divisors (3851321).

65532919 is a wasteful number, since it uses less digits than its factorization.

65532919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20129.

The product of its digits is 72900, while the sum is 40.

The square root of 65532919 is about 8095.2405152657. The cubic root of 65532919 is about 403.1684178062.

The spelling of 65532919 in words is "sixty-five million, five hundred thirty-two thousand, nine hundred nineteen".