65422401 has 24 divisors (see below), whose sum is σ = 98492352. Its totient is φ = 38570400.

The previous prime is 65422391. The next prime is 65422421. The reversal of 65422401 is 10422456.

It is not a de Polignac number, because 65422401 - 2⁶ = 65422337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65422421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10996 + ... + 15866.

It is an arithmetic number, because the mean of its divisors is an integer number (4103848).

Almost surely, 2^65422401 is an apocalyptic number.

It is an amenable number.

65422401 is a deficient number, since it is larger than the sum of its proper divisors (33069951).

65422401 is a wasteful number, since it uses less digits than its factorization.

65422401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4933 (or 4922 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 65422401 is about 8088.4115251389. The cubic root of 65422401 is about 402.9416491364.

Adding to 65422401 its reverse (10422456), we get a palindrome (75844857).

Subtracting from 65422401 its reverse (10422456), we obtain a palindrome (54999945).

The spelling of 65422401 in words is "sixty-five million, four hundred twenty-two thousand, four hundred one".