53336431 has 2 divisors, whose sum is σ = 53336432. Its totient is φ = 53336430.

The previous prime is 53336417. The next prime is 53336443. The reversal of 53336431 is 13463335.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53336431 - 2⁷ = 53336303 is a prime.

It is a super-2 number, since 2×53336431² = 5689549743635522, which contains 22 as substring.

It is equal to p_3189016 and since 53336431 and 3189016 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53336431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53336411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26668215 + 26668216.

It is an arithmetic number, because the mean of its divisors is an integer number (26668216).

Almost surely, 2^53336431 is an apocalyptic number.

53336431 is a deficient number, since it is larger than the sum of its proper divisors (1).

53336431 is an equidigital number, since it uses as much as digits as its factorization.

53336431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9720, while the sum is 28.

The square root of 53336431 is about 7303.1795130614. The cubic root of 53336431 is about 376.4216989512.

Adding to 53336431 its reverse (13463335), we get a palindrome (66799766).

The spelling of 53336431 in words is "fifty-three million, three hundred thirty-six thousand, four hundred thirty-one".