55906099723787 has 2 divisors, whose sum is σ = 55906099723788. Its totient is φ = 55906099723786.

The previous prime is 55906099723781. The next prime is 55906099723801. The reversal of 55906099723787 is 78732799060955.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55906099723787 is a prime.

It is not a weakly prime, because it can be changed into another prime (55906099723781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27953049861893 + 27953049861894.

It is an arithmetic number, because the mean of its divisors is an integer number (27953049861894).

Almost surely, 2^{55906099723787} is an apocalyptic number.

55906099723787 is a deficient number, since it is larger than the sum of its proper divisors (1).

55906099723787 is an equidigital number, since it uses as much as digits as its factorization.

55906099723787 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800338400, while the sum is 77.

The spelling of 55906099723787 in words is "fifty-five trillion, nine hundred six billion, ninety-nine million, seven hundred twenty-three thousand, seven hundred eighty-seven".