65650432 has 72 divisors (see below), whose sum is σ = 139809600. Its totient is φ = 30707712.

The previous prime is 65650397. The next prime is 65650439. The reversal of 65650432 is 23405656.

It is a junction number, because it is equal to n+sod(n) for n = 65650394 and 65650403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65650439) 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, 274569 + ... + 274807.

It is an arithmetic number, because the mean of its divisors is an integer number (1941800).

Almost surely, 2^65650432 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 65650432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69904800).

65650432 is an abundant number, since it is smaller than the sum of its proper divisors (74159168).

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

65650432 is a wasteful number, since it uses less digits than its factorization.

65650432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321 (or 307 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 65650432 is about 8102.4954180795. The cubic root of 65650432 is about 403.4092598146.

The spelling of 65650432 in words is "sixty-five million, six hundred fifty thousand, four hundred thirty-two".