65005422 has 64 divisors (see below), whose sum is σ = 142560000. Its totient is φ = 19692288.

The previous prime is 65005363. The next prime is 65005427. The reversal of 65005422 is 22450056.

It is a junction number, because it is equal to n+sod(n) for n = 65005392 and 65005401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65005427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 436204 + ... + 436352.

It is an arithmetic number, because the mean of its divisors is an integer number (2227500).

Almost surely, 2^65005422 is an apocalyptic number.

65005422 is an abundant number, since it is smaller than the sum of its proper divisors (77554578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65005422 is a wasteful number, since it uses less digits than its factorization.

65005422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 65005422 is about 8062.5939994520. The cubic root of 65005422 is about 402.0837552276.

Adding to 65005422 its reverse (22450056), we get a palindrome (87455478).

The spelling of 65005422 in words is "sixty-five million, five thousand, four hundred twenty-two".