1553512250243 has 2 divisors, whose sum is σ = 1553512250244. Its totient is φ = 1553512250242.

The previous prime is 1553512250219. The next prime is 1553512250261. The reversal of 1553512250243 is 3420522153551.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1553512250243 - 2²⁰ = 1553511201667 is a prime.

It is a super-3 number, since 3×1553512250243³ (a number of 38 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1553512250197 and 1553512250206.

It is not a weakly prime, because it can be changed into another prime (1553512550243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 776756125121 + 776756125122.

It is an arithmetic number, because the mean of its divisors is an integer number (776756125122).

Almost surely, 2^{1553512250243} is an apocalyptic number.

1553512250243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1553512250243 is an equidigital number, since it uses as much as digits as its factorization.

1553512250243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180000, while the sum is 38.

The spelling of 1553512250243 in words is "one trillion, five hundred fifty-three billion, five hundred twelve million, two hundred fifty thousand, two hundred forty-three".