65232544 has 48 divisors (see below), whose sum is σ = 139105512. Its totient is φ = 29933568.

The previous prime is 65232521. The next prime is 65232547. The reversal of 65232544 is 44523256.

It can be written as a sum of positive squares in 4 ways, for example, as 29376400 + 35856144 = 5420^2 + 5988^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65232547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96592 + ... + 97264.

Almost surely, 2^65232544 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 65232544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69552756).

65232544 is an abundant number, since it is smaller than the sum of its proper divisors (73872968).

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

65232544 is a wasteful number, since it uses less digits than its factorization.

65232544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929 (or 921 counting only the distinct ones).

The product of its digits is 28800, while the sum is 31.

The square root of 65232544 is about 8076.6666391526. Note that the first 4 decimals coincide. The cubic root of 65232544 is about 402.5514901400.

The spelling of 65232544 in words is "sixty-five million, two hundred thirty-two thousand, five hundred forty-four".