65473452 has 72 divisors (see below), whose sum is σ = 182446992. Its totient is φ = 19632000.

The previous prime is 65473451. The next prime is 65473489. The reversal of 65473452 is 25437456.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65473451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39178 + ... + 40814.

It is an arithmetic number, because the mean of its divisors is an integer number (2533986).

Almost surely, 2^65473452 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 65473452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91223496).

65473452 is an abundant number, since it is smaller than the sum of its proper divisors (116973540).

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

65473452 is a wasteful number, since it uses less digits than its factorization.

65473452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1759 (or 1754 counting only the distinct ones).

The product of its digits is 100800, while the sum is 36.

The square root of 65473452 is about 8091.5667209756. The cubic root of 65473452 is about 403.0464309111.

It can be divided in two parts, 6547 and 3452, that added together give a palindrome (9999).

The spelling of 65473452 in words is "sixty-five million, four hundred seventy-three thousand, four hundred fifty-two".