25066224437 has 2 divisors, whose sum is σ = 25066224438. Its totient is φ = 25066224436.

The previous prime is 25066224433. The next prime is 25066224439. The reversal of 25066224437 is 73442266052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18787088356 + 6279136081 = 137066^2 + 79241^2 .

It is a cyclic number.

It is not a de Polignac number, because 25066224437 - 2² = 25066224433 is a prime.

Together with 25066224439, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 25066224394 and 25066224403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25066224433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12533112218 + 12533112219.

It is an arithmetic number, because the mean of its divisors is an integer number (12533112219).

Almost surely, 2^25066224437 is an apocalyptic number.

It is an amenable number.

25066224437 is a deficient number, since it is larger than the sum of its proper divisors (1).

25066224437 is an equidigital number, since it uses as much as digits as its factorization.

25066224437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 483840, while the sum is 41.

The spelling of 25066224437 in words is "twenty-five billion, sixty-six million, two hundred twenty-four thousand, four hundred thirty-seven".