65752320 has 72 divisors (see below), whose sum is σ = 210008736. Its totient is φ = 17532928.

The previous prime is 65752307. The next prime is 65752343. The reversal of 65752320 is 2325756.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4722 + ... + 12401.

It is an arithmetic number, because the mean of its divisors is an integer number (2916788).

Almost surely, 2^65752320 is an apocalyptic number.

65752320 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

65752320 is an abundant number, since it is smaller than the sum of its proper divisors (144256416).

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

65752320 is a wasteful number, since it uses less digits than its factorization.

65752320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17147 (or 17133 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 30.

The square root of 65752320 is about 8108.7804261800. The cubic root of 65752320 is about 403.6178459899.

The spelling of 65752320 in words is "sixty-five million, seven hundred fifty-two thousand, three hundred twenty".