52421233 has 2 divisors, whose sum is σ = 52421234. Its totient is φ = 52421232.

The previous prime is 52421231. The next prime is 52421273. The reversal of 52421233 is 33212425.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51151104 + 1270129 = 7152^2 + 1127^2 .

It is a cyclic number.

It is not a de Polignac number, because 52421233 - 2¹ = 52421231 is a prime.

Together with 52421231, it forms a pair of twin primes.

It is equal to p_3137530 and since 52421233 and 3137530 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (52421231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26210616 + 26210617.

It is an arithmetic number, because the mean of its divisors is an integer number (26210617).

Almost surely, 2^52421233 is an apocalyptic number.

It is an amenable number.

52421233 is a deficient number, since it is larger than the sum of its proper divisors (1).

52421233 is an equidigital number, since it uses as much as digits as its factorization.

52421233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 22.

The square root of 52421233 is about 7240.2508934429. The cubic root of 52421233 is about 374.2562634056.

Adding to 52421233 its reverse (33212425), we get a palindrome (85633658).

The spelling of 52421233 in words is "fifty-two million, four hundred twenty-one thousand, two hundred thirty-three".