65523473 has 4 divisors (see below), whose sum is σ = 65594340. Its totient is φ = 65452608.

The previous prime is 65523463. The next prime is 65523503. The reversal of 65523473 is 37432556.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2289169 + 63234304 = 1513^2 + 7952^2 .

It is a cyclic number.

It is not a de Polignac number, because 65523473 - 2¹⁶ = 65457937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65523433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34028 + ... + 35901.

It is an arithmetic number, because the mean of its divisors is an integer number (16398585).

Almost surely, 2^65523473 is an apocalyptic number.

It is an amenable number.

65523473 is a deficient number, since it is larger than the sum of its proper divisors (70867).

65523473 is an equidigital number, since it uses as much as digits as its factorization.

65523473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70866.

The product of its digits is 75600, while the sum is 35.

The square root of 65523473 is about 8094.6570650028. The cubic root of 65523473 is about 403.1490458024.

The spelling of 65523473 in words is "sixty-five million, five hundred twenty-three thousand, four hundred seventy-three".