25620219347 has 2 divisors, whose sum is σ = 25620219348. Its totient is φ = 25620219346.

The previous prime is 25620219263. The next prime is 25620219349. The reversal of 25620219347 is 74391202652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25620219347 - 2⁸ = 25620219091 is a prime.

Together with 25620219349, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25620219349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12810109673 + 12810109674.

It is an arithmetic number, because the mean of its divisors is an integer number (12810109674).

Almost surely, 2^25620219347 is an apocalyptic number.

25620219347 is a deficient number, since it is larger than the sum of its proper divisors (1).

25620219347 is an equidigital number, since it uses as much as digits as its factorization.

25620219347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 41.

The spelling of 25620219347 in words is "twenty-five billion, six hundred twenty million, two hundred nineteen thousand, three hundred forty-seven".