53355147569 has 4 divisors (see below), whose sum is σ = 53358442596. Its totient is φ = 53351852544.

The previous prime is 53355147551. The next prime is 53355147607. The reversal of 53355147569 is 96574155335.

It is a happy number.

53355147569 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23637525025 + 29717622544 = 153745^2 + 172388^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53355147569 is a prime.

It is a super-2 number, since 2×53355147569² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53355147569.

It is not an unprimeable number, because it can be changed into a prime (53355147869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1623104 + ... + 1655649.

It is an arithmetic number, because the mean of its divisors is an integer number (13339610649).

Almost surely, 2^53355147569 is an apocalyptic number.

It is an amenable number.

53355147569 is a deficient number, since it is larger than the sum of its proper divisors (3295027).

53355147569 is a wasteful number, since it uses less digits than its factorization.

53355147569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3295026.

The product of its digits is 8505000, while the sum is 53.

The spelling of 53355147569 in words is "fifty-three billion, three hundred fifty-five million, one hundred forty-seven thousand, five hundred sixty-nine".