65250219 has 4 divisors (see below), whose sum is σ = 87000296. Its totient is φ = 43500144.

The previous prime is 65250217. The next prime is 65250253. The reversal of 65250219 is 91205256.

It is a happy number.

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

It is not a de Polignac number, because 65250219 - 2¹ = 65250217 is a prime.

It is a super-2 number, since 2×65250219² = 8515182159095922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65250217) 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, 10875034 + ... + 10875039.

It is an arithmetic number, because the mean of its divisors is an integer number (21750074).

Almost surely, 2^65250219 is an apocalyptic number.

65250219 is a deficient number, since it is larger than the sum of its proper divisors (21750077).

65250219 is a wasteful number, since it uses less digits than its factorization.

65250219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21750076.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 65250219 is about 8077.7607664501. The cubic root of 65250219 is about 402.5878444638.

The spelling of 65250219 in words is "sixty-five million, two hundred fifty thousand, two hundred nineteen".