55627643 has 2 divisors, whose sum is σ = 55627644. Its totient is φ = 55627642.

The previous prime is 55627633. The next prime is 55627699. The reversal of 55627643 is 34672655.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55627643 - 2²⁰ = 54579067 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55627597 and 55627606.

It is not a weakly prime, because it can be changed into another prime (55627633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27813821 + 27813822.

It is an arithmetic number, because the mean of its divisors is an integer number (27813822).

Almost surely, 2^55627643 is an apocalyptic number.

55627643 is a deficient number, since it is larger than the sum of its proper divisors (1).

55627643 is an equidigital number, since it uses as much as digits as its factorization.

55627643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 151200, while the sum is 38.

The square root of 55627643 is about 7458.3941301060. The cubic root of 55627643 is about 381.7363819011.

The spelling of 55627643 in words is "fifty-five million, six hundred twenty-seven thousand, six hundred forty-three".