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52221201 = 323756829
BaseRepresentation
bin1100011100110…
…1010100010001
310122021010000120
43013031110101
5101332034301
65103140453
71202605254
oct307152421
9118233016
1052221201
112752861a
12155a4729
13aa85426
146d1509b
1548b7e36
hex31cd511

52221201 has 8 divisors (see below), whose sum is σ = 72655680. Its totient is φ = 33300432.

The previous prime is 52221173. The next prime is 52221203. The reversal of 52221201 is 10212225.

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

It is not a de Polignac number, because 52221201 - 210 = 52220177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52221203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378346 + ... + 378483.

It is an arithmetic number, because the mean of its divisors is an integer number (9081960).

Almost surely, 252221201 is an apocalyptic number.

It is an amenable number.

52221201 is a deficient number, since it is larger than the sum of its proper divisors (20434479).

52221201 is a wasteful number, since it uses less digits than its factorization.

52221201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756855.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 52221201 is about 7226.4238043447. The cubic root of 52221201 is about 373.7796203263.

Adding to 52221201 its reverse (10212225), we get a palindrome (62433426).

The spelling of 52221201 in words is "fifty-two million, two hundred twenty-one thousand, two hundred one".

Divisors: 1 3 23 69 756829 2270487 17407067 52221201