65575750 has 16 divisors (see below), whose sum is σ = 122758272. Its totient is φ = 26230200.

The previous prime is 65575747. The next prime is 65575759. The reversal of 65575750 is 5757556.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65575759) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130902 + ... + 131401.

It is an arithmetic number, because the mean of its divisors is an integer number (7672392).

Almost surely, 2^65575750 is an apocalyptic number.

65575750 is a deficient number, since it is larger than the sum of its proper divisors (57182522).

65575750 is a wasteful number, since it uses less digits than its factorization.

65575750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262320 (or 262310 counting only the distinct ones).

The product of its (nonzero) digits is 183750, while the sum is 40.

The square root of 65575750 is about 8097.8855264816. The cubic root of 65575750 is about 403.2562329384.

The spelling of 65575750 in words is "sixty-five million, five hundred seventy-five thousand, seven hundred fifty".