65575238 has 4 divisors (see below), whose sum is σ = 98362860. Its totient is φ = 32787618.

The previous prime is 65575219. The next prime is 65575241. The reversal of 65575238 is 83257556.

65575238 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×65575238² = 8600223677513288, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 65575195 and 65575204.

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 as a sum of consecutive naturals, namely, 16393808 + ... + 16393811.

It is an arithmetic number, because the mean of its divisors is an integer number (24590715).

Almost surely, 2^65575238 is an apocalyptic number.

65575238 is a deficient number, since it is larger than the sum of its proper divisors (32787622).

65575238 is a wasteful number, since it uses less digits than its factorization.

65575238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32787621.

The product of its digits is 252000, while the sum is 41.

The square root of 65575238 is about 8097.8539132291. The cubic root of 65575238 is about 403.2551834258.

The spelling of 65575238 in words is "sixty-five million, five hundred seventy-five thousand, two hundred thirty-eight".