65123552 has 48 divisors (see below), whose sum is σ = 141839712. Its totient is φ = 29237760.

The previous prime is 65123533. The next prime is 65123561. The reversal of 65123552 is 25532156.

It is a happy number.

65123552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13277 + ... + 17507.

It is an arithmetic number, because the mean of its divisors is an integer number (2954994).

Almost surely, 2^65123552 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 65123552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70919856).

65123552 is an abundant number, since it is smaller than the sum of its proper divisors (76716160).

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

65123552 is a wasteful number, since it uses less digits than its factorization.

65123552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4291 (or 4283 counting only the distinct ones).

The product of its digits is 9000, while the sum is 29.

The square root of 65123552 is about 8069.9164803609. The cubic root of 65123552 is about 402.3271678016.

The spelling of 65123552 in words is "sixty-five million, one hundred twenty-three thousand, five hundred fifty-two".