55512210451 has 2 divisors, whose sum is σ = 55512210452. Its totient is φ = 55512210450.

The previous prime is 55512210421. The next prime is 55512210469. The reversal of 55512210451 is 15401221555.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55512210451 - 2¹⁵ = 55512177683 is a prime.

It is a super-2 number, since 2×55512210451² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55512210421) 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, 27756105225 + 27756105226.

It is an arithmetic number, because the mean of its divisors is an integer number (27756105226).

Almost surely, 2^55512210451 is an apocalyptic number.

55512210451 is a deficient number, since it is larger than the sum of its proper divisors (1).

55512210451 is an equidigital number, since it uses as much as digits as its factorization.

55512210451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10000, while the sum is 31.

The spelling of 55512210451 in words is "fifty-five billion, five hundred twelve million, two hundred ten thousand, four hundred fifty-one".