2540001043253 has 2 divisors, whose sum is σ = 2540001043254. Its totient is φ = 2540001043252.

The previous prime is 2540001043199. The next prime is 2540001043301. The reversal of 2540001043253 is 3523401000452.

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., 2415481689124 + 124519354129 = 1554182^2 + 352873^2 .

It is a cyclic number.

It is not a de Polignac number, because 2540001043253 - 2¹⁴ = 2540001026869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2540001043453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1270000521626 + 1270000521627.

It is an arithmetic number, because the mean of its divisors is an integer number (1270000521627).

Almost surely, 2^{2540001043253} is an apocalyptic number.

It is an amenable number.

2540001043253 is a deficient number, since it is larger than the sum of its proper divisors (1).

2540001043253 is an equidigital number, since it uses as much as digits as its factorization.

2540001043253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 29.

The spelling of 2540001043253 in words is "two trillion, five hundred forty billion, one million, forty-three thousand, two hundred fifty-three".