65213020 has 24 divisors (see below), whose sum is σ = 145003824. Its totient is φ = 24550656.

The previous prime is 65213009. The next prime is 65213021. The reversal of 65213020 is 2031256.

It is a happy number.

65213020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65213021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95562 + ... + 96241.

It is an arithmetic number, because the mean of its divisors is an integer number (6041826).

Almost surely, 2^65213020 is an apocalyptic number.

It is an amenable number.

65213020 is an abundant number, since it is smaller than the sum of its proper divisors (79790804).

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

65213020 is a wasteful number, since it uses less digits than its factorization.

65213020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191829 (or 191827 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 65213020 is about 8075.4578817551. The cubic root of 65213020 is about 402.5113251189.

Adding to 65213020 its reverse (2031256), we get a palindrome (67244276).

The spelling of 65213020 in words is "sixty-five million, two hundred thirteen thousand, twenty".