55256465651 has 4 divisors (see below), whose sum is σ = 55257079752. Its totient is φ = 55255851552.

The previous prime is 55256465617. The next prime is 55256465659. The reversal of 55256465651 is 15656465255.

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 not a de Polignac number, because 55256465651 - 2¹⁸ = 55256203507 is a prime.

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 55256465651.

It is not an unprimeable number, because it can be changed into a prime (55256465659) 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 in 3 ways as a sum of consecutive naturals, for example, 142790 + ... + 361803.

It is an arithmetic number, because the mean of its divisors is an integer number (13814269938).

Almost surely, 2^55256465651 is an apocalyptic number.

55256465651 is a deficient number, since it is larger than the sum of its proper divisors (614101).

55256465651 is a wasteful number, since it uses less digits than its factorization.

55256465651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614100.

The product of its digits is 5400000, while the sum is 50.

The spelling of 55256465651 in words is "fifty-five billion, two hundred fifty-six million, four hundred sixty-five thousand, six hundred fifty-one".