55913743 has 2 divisors, whose sum is σ = 55913744. Its totient is φ = 55913742.

The previous prime is 55913719. The next prime is 55913747. The reversal of 55913743 is 34731955.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55913743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55913747) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27956871 + 27956872.

It is an arithmetic number, because the mean of its divisors is an integer number (27956872).

Almost surely, 2^55913743 is an apocalyptic number.

55913743 is a deficient number, since it is larger than the sum of its proper divisors (1).

55913743 is an equidigital number, since it uses as much as digits as its factorization.

55913743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56700, while the sum is 37.

The square root of 55913743 is about 7477.5492642978. The cubic root of 55913743 is about 382.3897026304.

The spelling of 55913743 in words is "fifty-five million, nine hundred thirteen thousand, seven hundred forty-three".