1553244615983 has 2 divisors, whose sum is σ = 1553244615984. Its totient is φ = 1553244615982.

The previous prime is 1553244615977. The next prime is 1553244616019. The reversal of 1553244615983 is 3895164423551.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1553244615983 - 2⁶ = 1553244615919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1553244615283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 776622307991 + 776622307992.

It is an arithmetic number, because the mean of its divisors is an integer number (776622307992).

Almost surely, 2^{1553244615983} is an apocalyptic number.

1553244615983 is a deficient number, since it is larger than the sum of its proper divisors (1).

1553244615983 is an equidigital number, since it uses as much as digits as its factorization.

1553244615983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552000, while the sum is 56.

The spelling of 1553244615983 in words is "one trillion, five hundred fifty-three billion, two hundred forty-four million, six hundred fifteen thousand, nine hundred eighty-three".