25285843235383 has 2 divisors, whose sum is σ = 25285843235384. Its totient is φ = 25285843235382.

The previous prime is 25285843235363. The next prime is 25285843235399. The reversal of 25285843235383 is 38353234858252.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25285843235383 - 2¹³ = 25285843227191 is a prime.

It is a super-2 number, since 2×25285843235383² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25285843235363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12642921617691 + 12642921617692.

It is an arithmetic number, because the mean of its divisors is an integer number (12642921617692).

Almost surely, 2^{25285843235383} is an apocalyptic number.

25285843235383 is a deficient number, since it is larger than the sum of its proper divisors (1).

25285843235383 is an equidigital number, since it uses as much as digits as its factorization.

25285843235383 is an evil number, because the sum of its binary digits is even.

The product of its digits is 165888000, while the sum is 61.

The spelling of 25285843235383 in words is "twenty-five trillion, two hundred eighty-five billion, eight hundred forty-three million, two hundred thirty-five thousand, three hundred eighty-three".