65213259 has 4 divisors (see below), whose sum is σ = 86951016. Its totient is φ = 43475504.

The previous prime is 65213251. The next prime is 65213273. The reversal of 65213259 is 95231256.

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 65213259 - 2³ = 65213251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65213251) 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, 10868874 + ... + 10868879.

It is an arithmetic number, because the mean of its divisors is an integer number (21737754).

Almost surely, 2^65213259 is an apocalyptic number.

65213259 is a deficient number, since it is larger than the sum of its proper divisors (21737757).

65213259 is a wasteful number, since it uses less digits than its factorization.

65213259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21737756.

The product of its digits is 16200, while the sum is 33.

The square root of 65213259 is about 8075.4726796640. The cubic root of 65213259 is about 402.5118168412.

The spelling of 65213259 in words is "sixty-five million, two hundred thirteen thousand, two hundred fifty-nine".