65242530 has 32 divisors (see below), whose sum is σ = 173980800. Its totient is φ = 17397936.

The previous prime is 65242483. The next prime is 65242531. The reversal of 65242530 is 3524256.

65242530 is a `hidden beast` number, since 652 + 4 + 2 + 5 + 3 + 0 = 666.

65242530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 65242494 and 65242503.

It is not an unprimeable number, because it can be changed into a prime (65242531) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 120550 + ... + 121089.

It is an arithmetic number, because the mean of its divisors is an integer number (5436900).

Almost surely, 2^65242530 is an apocalyptic number.

65242530 is an abundant number, since it is smaller than the sum of its proper divisors (108738270).

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

65242530 is a wasteful number, since it uses less digits than its factorization.

65242530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241655 (or 241649 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 65242530 is about 8077.2848160753. The cubic root of 65242530 is about 402.5720303685.

Adding to 65242530 its reverse (3524256), we get a palindrome (68766786).

The spelling of 65242530 in words is "sixty-five million, two hundred forty-two thousand, five hundred thirty".