53345665429 has 4 divisors (see below), whose sum is σ = 60966474784. Its totient is φ = 45724856076.

The previous prime is 53345665421. The next prime is 53345665441. The reversal of 53345665429 is 92456654335.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 53345665429 - 2³ = 53345665421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53345665421) 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 in 3 ways as a sum of consecutive naturals, for example, 3810404667 + ... + 3810404680.

It is an arithmetic number, because the mean of its divisors is an integer number (15241618696).

Almost surely, 2^53345665429 is an apocalyptic number.

It is an amenable number.

53345665429 is a deficient number, since it is larger than the sum of its proper divisors (7620809355).

53345665429 is an equidigital number, since it uses as much as digits as its factorization.

53345665429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7620809354.

The product of its digits is 11664000, while the sum is 52.

The spelling of 53345665429 in words is "fifty-three billion, three hundred forty-five million, six hundred sixty-five thousand, four hundred twenty-nine".