253455144643 has 2 divisors, whose sum is σ = 253455144644. Its totient is φ = 253455144642.

The previous prime is 253455144637. The next prime is 253455144653. The reversal of 253455144643 is 346441554352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 253455144643 - 2²⁵ = 253421590211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 253455144593 and 253455144602.

It is not a weakly prime, because it can be changed into another prime (253455144653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126727572321 + 126727572322.

It is an arithmetic number, because the mean of its divisors is an integer number (126727572322).

Almost surely, 2^253455144643 is an apocalyptic number.

253455144643 is a deficient number, since it is larger than the sum of its proper divisors (1).

253455144643 is an equidigital number, since it uses as much as digits as its factorization.

253455144643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456000, while the sum is 46.

Adding to 253455144643 its reverse (346441554352), we get a palindrome (599896698995).

The spelling of 253455144643 in words is "two hundred fifty-three billion, four hundred fifty-five million, one hundred forty-four thousand, six hundred forty-three".