65241020 has 48 divisors (see below), whose sum is σ = 150081120. Its totient is φ = 23675136.

The previous prime is 65241017. The next prime is 65241037. The reversal of 65241020 is 2014256.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 65240983 and 65241001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13214 + ... + 17466.

It is an arithmetic number, because the mean of its divisors is an integer number (3126690).

Almost surely, 2^65241020 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 65241020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75040560).

65241020 is an abundant number, since it is smaller than the sum of its proper divisors (84840100).

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

65241020 is a wasteful number, since it uses less digits than its factorization.

65241020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4334 (or 4332 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 65241020 is about 8077.1913435302. The cubic root of 65241020 is about 402.5689245802.

Adding to 65241020 its reverse (2014256), we get a palindrome (67255276).

The spelling of 65241020 in words is "sixty-five million, two hundred forty-one thousand, twenty".