65499375 has 40 divisors (see below), whose sum is σ = 110302192. Its totient is φ = 34560000.

The previous prime is 65499349. The next prime is 65499389. The reversal of 65499375 is 57399456.

It is not a de Polignac number, because 65499375 - 2¹² = 65495279 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 39 ways as a sum of consecutive naturals, for example, 339279 + ... + 339471.

Almost surely, 2^65499375 is an apocalyptic number.

65499375 is a deficient number, since it is larger than the sum of its proper divisors (44802817).

65499375 is a wasteful number, since it uses less digits than its factorization.

65499375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397 (or 382 counting only the distinct ones).

The product of its digits is 1020600, while the sum is 48.

The square root of 65499375 is about 8093.1684153983. The cubic root of 65499375 is about 403.0996168141.

The spelling of 65499375 in words is "sixty-five million, four hundred ninety-nine thousand, three hundred seventy-five".