53640022 has 8 divisors (see below), whose sum is σ = 80496936. Its totient is φ = 26807712.

The previous prime is 53640017. The next prime is 53640023. The reversal of 53640022 is 22004635.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 53639975 and 53640002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53640023) 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, 933 + ... + 10399.

It is an arithmetic number, because the mean of its divisors is an integer number (10062117).

Almost surely, 2^53640022 is an apocalyptic number.

53640022 is a deficient number, since it is larger than the sum of its proper divisors (26856914).

53640022 is a wasteful number, since it uses less digits than its factorization.

53640022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12302.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 53640022 is about 7323.9348713653. The cubic root of 53640022 is about 377.1345456677.

Adding to 53640022 its reverse (22004635), we get a palindrome (75644657).

The spelling of 53640022 in words is "fifty-three million, six hundred forty thousand, twenty-two".