65563230 has 32 divisors (see below), whose sum is σ = 157707648. Its totient is φ = 17444000.

The previous prime is 65563217. The next prime is 65563231. The reversal of 65563230 is 3236556.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65563231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12505 + ... + 16955.

It is an arithmetic number, because the mean of its divisors is an integer number (4928364).

Almost surely, 2^65563230 is an apocalyptic number.

65563230 is an abundant number, since it is smaller than the sum of its proper divisors (92144418).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65563230 is a wasteful number, since it uses less digits than its factorization.

65563230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4952.

The product of its (nonzero) digits is 16200, while the sum is 30.

The square root of 65563230 is about 8097.1124482744. The cubic root of 65563230 is about 403.2305675089.

Adding to 65563230 its reverse (3236556), we get a palindrome (68799786).

The spelling of 65563230 in words is "sixty-five million, five hundred sixty-three thousand, two hundred thirty".