53505432553 has 2 divisors, whose sum is σ = 53505432554. Its totient is φ = 53505432552.

The previous prime is 53505432551. The next prime is 53505432559. The reversal of 53505432553 is 35523450535.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51723495184 + 1781937369 = 227428^2 + 42213^2 .

It is a cyclic number.

It is not a de Polignac number, because 53505432553 - 2¹ = 53505432551 is a prime.

Together with 53505432551, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (53505432551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26752716276 + 26752716277.

It is an arithmetic number, because the mean of its divisors is an integer number (26752716277).

Almost surely, 2^53505432553 is an apocalyptic number.

It is an amenable number.

53505432553 is a deficient number, since it is larger than the sum of its proper divisors (1).

53505432553 is an equidigital number, since it uses as much as digits as its factorization.

53505432553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 675000, while the sum is 40.

The spelling of 53505432553 in words is "fifty-three billion, five hundred five million, four hundred thirty-two thousand, five hundred fifty-three".