53117222 has 8 divisors (see below), whose sum is σ = 81619272. Its totient is φ = 25910800.
The previous prime is 53117219. The next prime is 53117227. The reversal of 53117222 is 22271135.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (53117227) 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, 323804 + ... + 323967.
It is an arithmetic number, because the mean of its divisors is an integer number (10202409).
Almost surely, 253117222 is an apocalyptic number.
53117222 is a deficient number, since it is larger than the sum of its proper divisors (28502050).
53117222 is a wasteful number, since it uses less digits than its factorization.
53117222 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 647814.
The product of its digits is 840, while the sum is 23.
The square root of 53117222 is about 7288.1562826273. The cubic root of 53117222 is about 375.9053019024.
Adding to 53117222 its reverse (22271135), we get a palindrome (75388357).
The spelling of 53117222 in words is "fifty-three million, one hundred seventeen thousand, two hundred twenty-two".
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