253688540999 has 2 divisors, whose sum is σ = 253688541000. Its totient is φ = 253688540998.

The previous prime is 253688540981. The next prime is 253688541017. The reversal of 253688540999 is 999045886352.

It is a balanced prime because it is at equal distance from previous prime (253688540981) and next prime (253688541017).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253688540999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253688500999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126844270499 + 126844270500.

It is an arithmetic number, because the mean of its divisors is an integer number (126844270500).

Almost surely, 2^253688540999 is an apocalyptic number.

253688540999 is a deficient number, since it is larger than the sum of its proper divisors (1).

253688540999 is an equidigital number, since it uses as much as digits as its factorization.

253688540999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 167961600, while the sum is 68.

The spelling of 253688540999 in words is "two hundred fifty-three billion, six hundred eighty-eight million, five hundred forty thousand, nine hundred ninety-nine".