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54221201 = 311749071
BaseRepresentation
bin1100111011010…
…1100110010001
310210000201111122
43032311212101
5102340034301
65214052025
71225605206
oct316654621
9123021448
1054221201
1128674211
12161aa015
13b305868
1472b5cad
154b6081b
hex33b5991

54221201 has 4 divisors (see below), whose sum is σ = 55970304. Its totient is φ = 52472100.

The previous prime is 54221191. The next prime is 54221207. The reversal of 54221201 is 10212245.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10212245 = 52042449.

It is a cyclic number.

It is not a de Polignac number, because 54221201 - 218 = 53959057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 54221201.

It is not an unprimeable number, because it can be changed into a prime (54221207) 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, 874505 + ... + 874566.

It is an arithmetic number, because the mean of its divisors is an integer number (13992576).

Almost surely, 254221201 is an apocalyptic number.

It is an amenable number.

54221201 is a deficient number, since it is larger than the sum of its proper divisors (1749103).

54221201 is a wasteful number, since it uses less digits than its factorization.

54221201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1749102.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 54221201 is about 7363.5046682948. The cubic root of 54221201 is about 378.4917151868.

Adding to 54221201 its reverse (10212245), we get a palindrome (64433446).

The spelling of 54221201 in words is "fifty-four million, two hundred twenty-one thousand, two hundred one".

Divisors: 1 31 1749071 54221201