253540203971 has 2 divisors, whose sum is σ = 253540203972. Its totient is φ = 253540203970.

The previous prime is 253540203941. The next prime is 253540204081. The reversal of 253540203971 is 179302045352.

253540203971 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 253540203971 - 2⁶ = 253540203907 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (253540203911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126770101985 + 126770101986.

It is an arithmetic number, because the mean of its divisors is an integer number (126770101986).

Almost surely, 2^253540203971 is an apocalyptic number.

253540203971 is a deficient number, since it is larger than the sum of its proper divisors (1).

253540203971 is an equidigital number, since it uses as much as digits as its factorization.

253540203971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 226800, while the sum is 41.

The spelling of 253540203971 in words is "two hundred fifty-three billion, five hundred forty million, two hundred three thousand, nine hundred seventy-one".