65290 has 8 divisors (see below), whose sum is σ = 117540. Its totient is φ = 26112.

The previous prime is 65287. The next prime is 65293. The reversal of 65290 is 9256.

It is an interprime number because it is at equal distance from previous prime (65287) and next prime (65293).

It can be written as a sum of positive squares in 2 ways, for example, as 59049 + 6241 = 243^2 + 79^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an alternating number because its digits alternate between even and odd.

It is a zygodrome in base 4.

It is not an unprimeable number, because it can be changed into a prime (65293) 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, 3255 + ... + 3274.

2⁶⁵²⁹⁰ is an apocalyptic number.

65290 is a deficient number, since it is larger than the sum of its proper divisors (52250).

65290 is a wasteful number, since it uses less digits than its factorization.

65290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6536.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 65290 is about 255.5190795224. The cubic root of 65290 is about 40.2669642879.

The spelling of 65290 in words is "sixty-five thousand, two hundred ninety".