55643051 has 2 divisors, whose sum is σ = 55643052. Its totient is φ = 55643050.

The previous prime is 55643033. The next prime is 55643053. The reversal of 55643051 is 15034655.

55643051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55643051 - 2¹⁴ = 55626667 is a prime.

It is a super-2 number, since 2×55643051² = 6192298249177202, which contains 22 as substring.

Together with 55643053, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55643053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27821525 + 27821526.

It is an arithmetic number, because the mean of its divisors is an integer number (27821526).

Almost surely, 2^55643051 is an apocalyptic number.

55643051 is a deficient number, since it is larger than the sum of its proper divisors (1).

55643051 is an equidigital number, since it uses as much as digits as its factorization.

55643051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 55643051 is about 7459.4269887170. The cubic root of 55643051 is about 381.7716236795.

The spelling of 55643051 in words is "fifty-five million, six hundred forty-three thousand, fifty-one".