65051223 has 8 divisors (see below), whose sum is σ = 87288048. Its totient is φ = 43090944.

The previous prime is 65051221. The next prime is 65051227. The reversal of 65051223 is 32215056.

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

It is not a de Polignac number, because 65051223 - 2¹ = 65051221 is a prime.

It is a super-2 number, since 2×65051223² = 8463323227591458, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 65051193 and 65051202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65051221) 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, 68586 + ... + 69527.

It is an arithmetic number, because the mean of its divisors is an integer number (10911006).

Almost surely, 2^65051223 is an apocalyptic number.

65051223 is a deficient number, since it is larger than the sum of its proper divisors (22236825).

65051223 is a wasteful number, since it uses less digits than its factorization.

65051223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138273.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 65051223 is about 8065.4338383003. The cubic root of 65051223 is about 402.1781653763.

Adding to 65051223 its reverse (32215056), we get a palindrome (97266279).

The spelling of 65051223 in words is "sixty-five million, fifty-one thousand, two hundred twenty-three".