Search a number
-
+
52432421 is a prime number
BaseRepresentation
bin1100100000000…
…0111000100101
310122122211202112
43020000320211
5101410314141
65111450405
71204445126
oct310007045
9118584675
1052432421
1127662288
1215686a05
13ab2a602
146d6c04d
15490a7eb
hex3200e25

52432421 has 2 divisors, whose sum is σ = 52432422. Its totient is φ = 52432420.

The previous prime is 52432397. The next prime is 52432447. The reversal of 52432421 is 12423425.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52041796 + 390625 = 7214^2 + 625^2 .

It is a cyclic number.

It is not a de Polignac number, because 52432421 - 210 = 52431397 is a prime.

It is equal to p3138107 and since 52432421 and 3138107 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52432021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26216210 + 26216211.

It is an arithmetic number, because the mean of its divisors is an integer number (26216211).

Almost surely, 252432421 is an apocalyptic number.

It is an amenable number.

52432421 is a deficient number, since it is larger than the sum of its proper divisors (1).

52432421 is an equidigital number, since it uses as much as digits as its factorization.

52432421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1920, while the sum is 23.

The square root of 52432421 is about 7241.0234773822. The cubic root of 52432421 is about 374.2828867221.

Adding to 52432421 its reverse (12423425), we get a palindrome (64855846).

The spelling of 52432421 in words is "fifty-two million, four hundred thirty-two thousand, four hundred twenty-one".