65245656 has 96 divisors (see below), whose sum is σ = 191862000. Its totient is φ = 18434304.

The previous prime is 65245591. The next prime is 65245657. The reversal of 65245656 is 65654256.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65245657) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 127930 + ... + 128438.

Almost surely, 2^65245656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65245656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95931000).

65245656 is an abundant number, since it is smaller than the sum of its proper divisors (126616344).

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

65245656 is a wasteful number, since it uses less digits than its factorization.

65245656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641 (or 630 counting only the distinct ones).

The product of its digits is 216000, while the sum is 39.

The square root of 65245656 is about 8077.4783193767. The cubic root of 65245656 is about 402.5784598150.

The spelling of 65245656 in words is "sixty-five million, two hundred forty-five thousand, six hundred fifty-six".