65023620 has 48 divisors (see below), whose sum is σ = 183297408. Its totient is φ = 17222400.

The previous prime is 65023601. The next prime is 65023627. The reversal of 65023620 is 2632056.

It is not an unprimeable number, because it can be changed into a prime (65023627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5472 + ... + 12648.

It is an arithmetic number, because the mean of its divisors is an integer number (3818696).

Almost surely, 2^65023620 is an apocalyptic number.

65023620 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65023620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91648704).

65023620 is an abundant number, since it is smaller than the sum of its proper divisors (118273788).

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

65023620 is a wasteful number, since it uses less digits than its factorization.

65023620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7340 (or 7338 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 65023620 is about 8063.7224654622. The cubic root of 65023620 is about 402.1212722903.

Adding to 65023620 its reverse (2632056), we get a palindrome (67655676).

The spelling of 65023620 in words is "sixty-five million, twenty-three thousand, six hundred twenty".