65424231 has 12 divisors (see below), whose sum is σ = 94585608. Its totient is φ = 43577424.

The previous prime is 65424221. The next prime is 65424241. The reversal of 65424231 is 13242456.

65424231 is a `hidden beast` number, since 6 + 5 + 424 + 231 = 666.

It is an interprime number because it is at equal distance from previous prime (65424221) and next prime (65424241).

It is not a de Polignac number, because 65424231 - 2¹⁰ = 65423207 is a prime.

It is a super-2 number, since 2×65424231² = 8560660003882722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 65424195 and 65424204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65424221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10576 + ... + 15578.

It is an arithmetic number, because the mean of its divisors is an integer number (7882134).

Almost surely, 2^65424231 is an apocalyptic number.

65424231 is a deficient number, since it is larger than the sum of its proper divisors (29161377).

65424231 is a wasteful number, since it uses less digits than its factorization.

65424231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6462 (or 6459 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 65424231 is about 8088.5246491557. The cubic root of 65424231 is about 402.9454061387.

Adding to 65424231 its reverse (13242456), we get a palindrome (78666687).

The spelling of 65424231 in words is "sixty-five million, four hundred twenty-four thousand, two hundred thirty-one".