53400563 has 2 divisors, whose sum is σ = 53400564. Its totient is φ = 53400562.

The previous prime is 53400547. The next prime is 53400637. The reversal of 53400563 is 36500435.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53400563 - 2⁴ = 53400547 is a prime.

It is not a weakly prime, because it can be changed into another prime (53403563) 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, 26700281 + 26700282.

It is an arithmetic number, because the mean of its divisors is an integer number (26700282).

Almost surely, 2^53400563 is an apocalyptic number.

53400563 is a deficient number, since it is larger than the sum of its proper divisors (1).

53400563 is an equidigital number, since it uses as much as digits as its factorization.

53400563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 53400563 is about 7307.5688843828. The cubic root of 53400563 is about 376.5725089871.

Adding to 53400563 its reverse (36500435), we get a palindrome (89900998).

The spelling of 53400563 in words is "fifty-three million, four hundred thousand, five hundred sixty-three".