55534643 has 2 divisors, whose sum is σ = 55534644. Its totient is φ = 55534642.

The previous prime is 55534621. The next prime is 55534657. The reversal of 55534643 is 34643555.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55534643 - 2⁶ = 55534579 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55534603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27767321 + 27767322.

It is an arithmetic number, because the mean of its divisors is an integer number (27767322).

Almost surely, 2^55534643 is an apocalyptic number.

55534643 is a deficient number, since it is larger than the sum of its proper divisors (1).

55534643 is an equidigital number, since it uses as much as digits as its factorization.

55534643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108000, while the sum is 35.

The square root of 55534643 is about 7452.1569360823. The cubic root of 55534643 is about 381.5235303753.

The spelling of 55534643 in words is "fifty-five million, five hundred thirty-four thousand, six hundred forty-three".