65027220 has 96 divisors (see below), whose sum is σ = 187904640. Its totient is φ = 16796160.

The previous prime is 65027203. The next prime is 65027257. The reversal of 65027220 is 2272056.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 398859 + ... + 399021.

It is an arithmetic number, because the mean of its divisors is an integer number (1957340).

Almost surely, 2^65027220 is an apocalyptic number.

65027220 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65027220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93952320).

65027220 is an abundant number, since it is smaller than the sum of its proper divisors (122877420).

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

65027220 is a wasteful number, since it uses less digits than its factorization.

65027220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345 (or 343 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 65027220 is about 8063.9456843409. The cubic root of 65027220 is about 402.1286932340.

Adding to 65027220 its reverse (2272056), we get a palindrome (67299276).

The spelling of 65027220 in words is "sixty-five million, twenty-seven thousand, two hundred twenty".