1553020345519 has 2 divisors, whose sum is σ = 1553020345520. Its totient is φ = 1553020345518.

The previous prime is 1553020345427. The next prime is 1553020345523. The reversal of 1553020345519 is 9155430203551.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1553020345519 - 2¹⁹ = 1553019821231 is a prime.

It is a super-2 number, since 2×1553020345519² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1553020345579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 776510172759 + 776510172760.

It is an arithmetic number, because the mean of its divisors is an integer number (776510172760).

Almost surely, 2^{1553020345519} is an apocalyptic number.

1553020345519 is a deficient number, since it is larger than the sum of its proper divisors (1).

1553020345519 is an equidigital number, since it uses as much as digits as its factorization.

1553020345519 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 405000, while the sum is 43.

The spelling of 1553020345519 in words is "one trillion, five hundred fifty-three billion, twenty million, three hundred forty-five thousand, five hundred nineteen".