253989407101 has 2 divisors, whose sum is σ = 253989407102. Its totient is φ = 253989407100.

The previous prime is 253989407059. The next prime is 253989407117. The reversal of 253989407101 is 101704989352.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 252279171076 + 1710236025 = 502274^2 + 41355^2 .

It is a cyclic number.

It is not a de Polignac number, because 253989407101 - 2⁷ = 253989406973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253989407141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126994703550 + 126994703551.

It is an arithmetic number, because the mean of its divisors is an integer number (126994703551).

Almost surely, 2^253989407101 is an apocalyptic number.

It is an amenable number.

253989407101 is a deficient number, since it is larger than the sum of its proper divisors (1).

253989407101 is an equidigital number, since it uses as much as digits as its factorization.

253989407101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 49.

The spelling of 253989407101 in words is "two hundred fifty-three billion, nine hundred eighty-nine million, four hundred seven thousand, one hundred one".