55867265551 has 2 divisors, whose sum is σ = 55867265552. Its totient is φ = 55867265550.

The previous prime is 55867265549. The next prime is 55867265561. The reversal of 55867265551 is 15556276855.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55867265551 - 2¹ = 55867265549 is a prime.

Together with 55867265549, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 55867265492 and 55867265501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55867265501) 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 as a sum of consecutive naturals, namely, 27933632775 + 27933632776.

It is an arithmetic number, because the mean of its divisors is an integer number (27933632776).

Almost surely, 2^55867265551 is an apocalyptic number.

55867265551 is a deficient number, since it is larger than the sum of its proper divisors (1).

55867265551 is an equidigital number, since it uses as much as digits as its factorization.

55867265551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12600000, while the sum is 55.

The spelling of 55867265551 in words is "fifty-five billion, eight hundred sixty-seven million, two hundred sixty-five thousand, five hundred fifty-one".