55303744730387 has 2 divisors, whose sum is σ = 55303744730388. Its totient is φ = 55303744730386.

The previous prime is 55303744730309. The next prime is 55303744730389. The reversal of 55303744730387 is 78303744730355.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55303744730387 - 2¹² = 55303744726291 is a prime.

Together with 55303744730389, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55303744730389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27651872365193 + 27651872365194.

It is an arithmetic number, because the mean of its divisors is an integer number (27651872365194).

Almost surely, 2^{55303744730387} is an apocalyptic number.

55303744730387 is a deficient number, since it is larger than the sum of its proper divisors (1).

55303744730387 is an equidigital number, since it uses as much as digits as its factorization.

55303744730387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 88905600, while the sum is 59.

The spelling of 55303744730387 in words is "fifty-five trillion, three hundred three billion, seven hundred forty-four million, seven hundred thirty thousand, three hundred eighty-seven".