55743811 has 4 divisors (see below), whose sum is σ = 55864672. Its totient is φ = 55622952.

The previous prime is 55743791. The next prime is 55743823. The reversal of 55743811 is 11834755.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55743811 - 2⁹ = 55743299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55743841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59736 + ... + 60661.

It is an arithmetic number, because the mean of its divisors is an integer number (13966168).

Almost surely, 2^55743811 is an apocalyptic number.

55743811 is a deficient number, since it is larger than the sum of its proper divisors (120861).

55743811 is a wasteful number, since it uses less digits than its factorization.

55743811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120860.

The product of its digits is 16800, while the sum is 34.

The square root of 55743811 is about 7466.1778039369. The cubic root of 55743811 is about 382.0019256502.

The spelling of 55743811 in words is "fifty-five million, seven hundred forty-three thousand, eight hundred eleven".