53709222 has 32 divisors (see below), whose sum is σ = 129987072. Its totient is φ = 14442624.

The previous prime is 53709211. The next prime is 53709223. The reversal of 53709222 is 22290735.

It is a happy number.

53709222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 53709222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53709223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36898 + ... + 38325.

It is an arithmetic number, because the mean of its divisors is an integer number (4062096).

Almost surely, 2^53709222 is an apocalyptic number.

53709222 is an abundant number, since it is smaller than the sum of its proper divisors (76277850).

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

53709222 is a wasteful number, since it uses less digits than its factorization.

53709222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75252.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 53709222 is about 7328.6575851243. The cubic root of 53709222 is about 377.2966540766.

Adding to 53709222 its reverse (22290735), we get a palindrome (75999957).

The spelling of 53709222 in words is "fifty-three million, seven hundred nine thousand, two hundred twenty-two".