55743563 has 2 divisors, whose sum is σ = 55743564. Its totient is φ = 55743562.

The previous prime is 55743553. The next prime is 55743577. The reversal of 55743563 is 36534755.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55743563 - 2¹⁶ = 55678027 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (55743553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27871781 + 27871782.

It is an arithmetic number, because the mean of its divisors is an integer number (27871782).

Almost surely, 2^55743563 is an apocalyptic number.

55743563 is a deficient number, since it is larger than the sum of its proper divisors (1).

55743563 is an equidigital number, since it uses as much as digits as its factorization.

55743563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 189000, while the sum is 38.

The square root of 55743563 is about 7466.1611956882. The cubic root of 55743563 is about 382.0013591502.

The spelling of 55743563 in words is "fifty-five million, seven hundred forty-three thousand, five hundred sixty-three".