53551556669 has 8 divisors (see below), whose sum is σ = 57672800640. Its totient is φ = 49430583216.

The previous prime is 53551556659. The next prime is 53551556683. The reversal of 53551556669 is 96665515535.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53551556669 is a prime.

It is a super-2 number, since 2×53551556669² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53551556659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 557792 + ... + 646710.

It is an arithmetic number, because the mean of its divisors is an integer number (7209100080).

Almost surely, 2^53551556669 is an apocalyptic number.

It is an amenable number.

53551556669 is a deficient number, since it is larger than the sum of its proper divisors (4121243971).

53551556669 is a wasteful number, since it uses less digits than its factorization.

53551556669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135259.

The product of its digits is 18225000, while the sum is 56.

The spelling of 53551556669 in words is "fifty-three billion, five hundred fifty-one million, five hundred fifty-six thousand, six hundred sixty-nine".