55055561051 has 2 divisors, whose sum is σ = 55055561052. Its totient is φ = 55055561050.

The previous prime is 55055561039. The next prime is 55055561059. The reversal of 55055561051 is 15016555055.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55055561051 is a prime.

It is a super-2 number, since 2×55055561051² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55055560996 and 55055561014.

It is not a weakly prime, because it can be changed into another prime (55055561059) 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, 27527780525 + 27527780526.

It is an arithmetic number, because the mean of its divisors is an integer number (27527780526).

Almost surely, 2^55055561051 is an apocalyptic number.

55055561051 is a deficient number, since it is larger than the sum of its proper divisors (1).

55055561051 is an equidigital number, since it uses as much as digits as its factorization.

55055561051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93750, while the sum is 38.

The spelling of 55055561051 in words is "fifty-five billion, fifty-five million, five hundred sixty-one thousand, fifty-one".