65525832 has 72 divisors (see below), whose sum is σ = 187371990. Its totient is φ = 20684160.

The previous prime is 65525821. The next prime is 65525833. The reversal of 65525832 is 23852556.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 65512836 + 12996 = 8094^2 + 114^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (65525833) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 24732 + ... + 27252.

Almost surely, 2^65525832 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 65525832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93685995).

65525832 is an abundant number, since it is smaller than the sum of its proper divisors (121846158).

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

65525832 is a wasteful number, since it uses less digits than its factorization.

65525832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2571 (or 2545 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 65525832 is about 8094.8027770910. The cubic root of 65525832 is about 403.1538838507.

The spelling of 65525832 in words is "sixty-five million, five hundred twenty-five thousand, eight hundred thirty-two".