65213260 has 24 divisors (see below), whose sum is σ = 156512160. Its totient is φ = 22358784.

The previous prime is 65213251. The next prime is 65213273. The reversal of 65213260 is 6231256.

65213260 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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, 232765 + ... + 233044.

It is an arithmetic number, because the mean of its divisors is an integer number (6521340).

Almost surely, 2^65213260 is an apocalyptic number.

It is an amenable number.

65213260 is an abundant number, since it is smaller than the sum of its proper divisors (91298900).

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

65213260 is a wasteful number, since it uses less digits than its factorization.

65213260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465825 (or 465823 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 65213260 is about 8075.4727415799. The cubic root of 65213260 is about 402.5118188986.

It can be divided in two parts, 6521 and 3260, that multiplied together give a triangular number (21258460 = T₆₅₂₀).

The spelling of 65213260 in words is "sixty-five million, two hundred thirteen thousand, two hundred sixty".