53423551 has 2 divisors, whose sum is σ = 53423552. Its totient is φ = 53423550.

The previous prime is 53423543. The next prime is 53423567. The reversal of 53423551 is 15532435.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53423551 - 2³ = 53423543 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53423581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26711775 + 26711776.

It is an arithmetic number, because the mean of its divisors is an integer number (26711776).

Almost surely, 2^53423551 is an apocalyptic number.

53423551 is a deficient number, since it is larger than the sum of its proper divisors (1).

53423551 is an equidigital number, since it uses as much as digits as its factorization.

53423551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9000, while the sum is 28.

The square root of 53423551 is about 7309.1416048672. The cubic root of 53423551 is about 376.6265371750.

Adding to 53423551 its reverse (15532435), we get a palindrome (68955986).

The spelling of 53423551 in words is "fifty-three million, four hundred twenty-three thousand, five hundred fifty-one".