65241563 has 4 divisors (see below), whose sum is σ = 69079320. Its totient is φ = 61403808.

The previous prime is 65241557. The next prime is 65241571. The reversal of 65241563 is 36514256.

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 65241563 - 2¹² = 65237467 is a prime.

It is a super-3 number, since 3×65241563³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65241263) 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, 1918853 + ... + 1918886.

It is an arithmetic number, because the mean of its divisors is an integer number (17269830).

Almost surely, 2^65241563 is an apocalyptic number.

65241563 is a deficient number, since it is larger than the sum of its proper divisors (3837757).

65241563 is a wasteful number, since it uses less digits than its factorization.

65241563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3837756.

The product of its digits is 21600, while the sum is 32.

The square root of 65241563 is about 8077.2249566296. The cubic root of 65241563 is about 402.5700414354.

The spelling of 65241563 in words is "sixty-five million, two hundred forty-one thousand, five hundred sixty-three".