55753431551 has 4 divisors (see below), whose sum is σ = 55753950000. Its totient is φ = 55752913104.

The previous prime is 55753431499. The next prime is 55753431563. The reversal of 55753431551 is 15513435755.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55753431551 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 (55753433551) 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, 30851 + ... + 335348.

It is an arithmetic number, because the mean of its divisors is an integer number (13938487500).

Almost surely, 2^55753431551 is an apocalyptic number.

55753431551 is a deficient number, since it is larger than the sum of its proper divisors (518449).

55753431551 is a wasteful number, since it uses less digits than its factorization.

55753431551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518448.

The product of its digits is 787500, while the sum is 44.

The spelling of 55753431551 in words is "fifty-five billion, seven hundred fifty-three million, four hundred thirty-one thousand, five hundred fifty-one".