Search a number
-
+
52543031 is a prime number
BaseRepresentation
bin1100100001101…
…1111000110111
310122212110111012
43020123320313
5101422334111
65114102435
71205415452
oct310337067
9118773435
1052543031
11277283a2
121571aa1b
13ab68a68
146d9a499
15492d48b
hex321be37

52543031 has 2 divisors, whose sum is σ = 52543032. Its totient is φ = 52543030.

The previous prime is 52543013. The next prime is 52543069. The reversal of 52543031 is 13034525.

Together with previous prime (52543013) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52543031 - 218 = 52280887 is a prime.

It is a super-2 number, since 2×525430312 = 5521540213333922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52542988 and 52543006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52533031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26271515 + 26271516.

It is an arithmetic number, because the mean of its divisors is an integer number (26271516).

Almost surely, 252543031 is an apocalyptic number.

52543031 is a deficient number, since it is larger than the sum of its proper divisors (1).

52543031 is an equidigital number, since it uses as much as digits as its factorization.

52543031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 52543031 is about 7248.6571859897. The cubic root of 52543031 is about 374.5458941749.

Adding to 52543031 its reverse (13034525), we get a palindrome (65577556).

The spelling of 52543031 in words is "fifty-two million, five hundred forty-three thousand, thirty-one".