25285843215383 has 2 divisors, whose sum is σ = 25285843215384. Its totient is φ = 25285843215382.

The previous prime is 25285843215319. The next prime is 25285843215407. The reversal of 25285843215383 is 38351234858252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25285843215383 - 2⁶ = 25285843215319 is a prime.

It is a super-2 number, since 2×25285843215383² (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 (25285843235383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12642921607691 + 12642921607692.

It is an arithmetic number, because the mean of its divisors is an integer number (12642921607692).

Almost surely, 2^{25285843215383} is an apocalyptic number.

25285843215383 is a deficient number, since it is larger than the sum of its proper divisors (1).

25285843215383 is an equidigital number, since it uses as much as digits as its factorization.

25285843215383 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55296000, while the sum is 59.

The spelling of 25285843215383 in words is "twenty-five trillion, two hundred eighty-five billion, eight hundred forty-three million, two hundred fifteen thousand, three hundred eighty-three".