65608542 has 56 divisors (see below), whose sum is σ = 156290256. Its totient is φ = 20575296.

The previous prime is 65608519. The next prime is 65608547. The reversal of 65608542 is 24580656.

65608542 is a `hidden beast` number, since 6 + 5 + 608 + 5 + 42 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 65608497 and 65608506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65608547) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 23463 + ... + 26109.

Almost surely, 2^65608542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65608542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78145128).

65608542 is an abundant number, since it is smaller than the sum of its proper divisors (90681714).

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

65608542 is a wasteful number, since it uses less digits than its factorization.

65608542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2684 (or 2669 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 65608542 is about 8099.9099995000. The cubic root of 65608542 is about 403.3234395648.

The spelling of 65608542 in words is "sixty-five million, six hundred eight thousand, five hundred forty-two".