253000555543 has 2 divisors, whose sum is σ = 253000555544. Its totient is φ = 253000555542.

The previous prime is 253000555517. The next prime is 253000555559. The reversal of 253000555543 is 345555000352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 253000555543 - 2³⁷ = 115561602071 is a prime.

It is a super-2 number, since 2×253000555543² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253000555513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126500277771 + 126500277772.

It is an arithmetic number, because the mean of its divisors is an integer number (126500277772).

Almost surely, 2^253000555543 is an apocalyptic number.

253000555543 is a deficient number, since it is larger than the sum of its proper divisors (1).

253000555543 is an equidigital number, since it uses as much as digits as its factorization.

253000555543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 225000, while the sum is 37.

Adding to 253000555543 its reverse (345555000352), we get a palindrome (598555555895).

The spelling of 253000555543 in words is "two hundred fifty-three billion, five hundred fifty-five thousand, five hundred forty-three".