2001305554253 has 2 divisors, whose sum is σ = 2001305554254. Its totient is φ = 2001305554252.

The previous prime is 2001305554223. The next prime is 2001305554279. The reversal of 2001305554253 is 3524555031002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1986752268484 + 14553285769 = 1409522^2 + 120637^2 .

It is a cyclic number.

It is not a de Polignac number, because 2001305554253 - 2⁶ = 2001305554189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2001305554223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000652777126 + 1000652777127.

It is an arithmetic number, because the mean of its divisors is an integer number (1000652777127).

Almost surely, 2^{2001305554253} is an apocalyptic number.

It is an amenable number.

2001305554253 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001305554253 is an equidigital number, since it uses as much as digits as its factorization.

2001305554253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90000, while the sum is 35.

The spelling of 2001305554253 in words is "two trillion, one billion, three hundred five million, five hundred fifty-four thousand, two hundred fifty-three".