65250564 has 12 divisors (see below), whose sum is σ = 152251344. Its totient is φ = 21750184.

The previous prime is 65250553. The next prime is 65250569. The reversal of 65250564 is 46505256.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×65250564² = 8515272204636192, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65250569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2718762 + ... + 2718785.

It is an arithmetic number, because the mean of its divisors is an integer number (12687612).

Almost surely, 2^65250564 is an apocalyptic number.

It is an amenable number.

65250564 is an abundant number, since it is smaller than the sum of its proper divisors (87000780).

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

65250564 is a wasteful number, since it uses less digits than its factorization.

65250564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5437554 (or 5437552 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 33.

The square root of 65250564 is about 8077.7821213499. The cubic root of 65250564 is about 402.5885540019.

The spelling of 65250564 in words is "sixty-five million, two hundred fifty thousand, five hundred sixty-four".