65605375 has 16 divisors (see below), whose sum is σ = 89320608. Its totient is φ = 47712000.

The previous prime is 65605367. The next prime is 65605387. The reversal of 65605375 is 57350656.

It is not a de Polignac number, because 65605375 - 2³ = 65605367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22482 + ... + 25231.

It is an arithmetic number, because the mean of its divisors is an integer number (5582538).

Almost surely, 2^65605375 is an apocalyptic number.

65605375 is a deficient number, since it is larger than the sum of its proper divisors (23715233).

65605375 is a wasteful number, since it uses less digits than its factorization.

65605375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47739 (or 47729 counting only the distinct ones).

The product of its (nonzero) digits is 94500, while the sum is 37.

The square root of 65605375 is about 8099.7145011414. The cubic root of 65605375 is about 403.3169498312.

It can be divided in two parts, 6560 and 5375, that added together give a triangular number (11935 = T₁₅₄).

The spelling of 65605375 in words is "sixty-five million, six hundred five thousand, three hundred seventy-five".