55314521551 has 2 divisors, whose sum is σ = 55314521552. Its totient is φ = 55314521550.

The previous prime is 55314521527. The next prime is 55314521557. The reversal of 55314521551 is 15512541355.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55314521551 - 2¹⁵ = 55314488783 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55314521551.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55314521557) 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, 27657260775 + 27657260776.

It is an arithmetic number, because the mean of its divisors is an integer number (27657260776).

Almost surely, 2^55314521551 is an apocalyptic number.

55314521551 is a deficient number, since it is larger than the sum of its proper divisors (1).

55314521551 is an equidigital number, since it uses as much as digits as its factorization.

55314521551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75000, while the sum is 37.

The spelling of 55314521551 in words is "fifty-five billion, three hundred fourteen million, five hundred twenty-one thousand, five hundred fifty-one".