65376520 has 64 divisors (see below), whose sum is σ = 165680640. Its totient is φ = 23001600.

The previous prime is 65376497. The next prime is 65376533. The reversal of 65376520 is 2567356.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11244 + ... + 16036.

It is an arithmetic number, because the mean of its divisors is an integer number (2588760).

Almost surely, 2^65376520 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 65376520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82840320).

65376520 is an abundant number, since it is smaller than the sum of its proper divisors (100304120).

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

65376520 is a wasteful number, since it uses less digits than its factorization.

65376520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4846 (or 4842 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 34.

The square root of 65376520 is about 8085.5748094987. The cubic root of 65376520 is about 402.8474322272.

The spelling of 65376520 in words is "sixty-five million, three hundred seventy-six thousand, five hundred twenty".