25182294493 has 2 divisors, whose sum is σ = 25182294494. Its totient is φ = 25182294492.

The previous prime is 25182294427. The next prime is 25182294503. The reversal of 25182294493 is 39449228152.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25104184249 + 78110244 = 158443^2 + 8838^2 .

It is a cyclic number.

It is not a de Polignac number, because 25182294493 - 2¹⁷ = 25182163421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25182291493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12591147246 + 12591147247.

It is an arithmetic number, because the mean of its divisors is an integer number (12591147247).

Almost surely, 2^25182294493 is an apocalyptic number.

It is an amenable number.

25182294493 is a deficient number, since it is larger than the sum of its proper divisors (1).

25182294493 is an equidigital number, since it uses as much as digits as its factorization.

25182294493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1244160, while the sum is 49.

The spelling of 25182294493 in words is "twenty-five billion, one hundred eighty-two million, two hundred ninety-four thousand, four hundred ninety-three".