65647252 has 24 divisors (see below), whose sum is σ = 126034272. Its totient is φ = 29671200.

The previous prime is 65647247. The next prime is 65647277. The reversal of 65647252 is 25274656.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3843 + ... + 12085.

It is an arithmetic number, because the mean of its divisors is an integer number (5251428).

Almost surely, 2^65647252 is an apocalyptic number.

It is an amenable number.

65647252 is a deficient number, since it is larger than the sum of its proper divisors (60387020).

65647252 is a wasteful number, since it uses less digits than its factorization.

65647252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8439 (or 8437 counting only the distinct ones).

The product of its digits is 100800, while the sum is 37.

The square root of 65647252 is about 8102.2991798625. The cubic root of 65647252 is about 403.4027462136.

The spelling of 65647252 in words is "sixty-five million, six hundred forty-seven thousand, two hundred fifty-two".