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53222231 is a prime number
BaseRepresentation
bin1100101100000…
…1101101010111
310201010222011202
43023001231113
5102111102411
65140423115
71214244566
oct313015527
9121128152
1053222231
1128051717
12159a7a9b
13b045c5a
1470d5bdd
154a1483b
hex32c1b57

53222231 has 2 divisors, whose sum is σ = 53222232. Its totient is φ = 53222230.

The previous prime is 53222227. The next prime is 53222269. The reversal of 53222231 is 13222235.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53222231 - 22 = 53222227 is a prime.

It is a super-2 number, since 2×532222312 = 5665211745234722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53222131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26611115 + 26611116.

It is an arithmetic number, because the mean of its divisors is an integer number (26611116).

Almost surely, 253222231 is an apocalyptic number.

53222231 is a deficient number, since it is larger than the sum of its proper divisors (1).

53222231 is an equidigital number, since it uses as much as digits as its factorization.

53222231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 720, while the sum is 20.

The square root of 53222231 is about 7295.3568110134. The cubic root of 53222231 is about 376.1528515973.

Adding to 53222231 its reverse (13222235), we get a palindrome (66444466).

The spelling of 53222231 in words is "fifty-three million, two hundred twenty-two thousand, two hundred thirty-one".