25573109347 has 2 divisors, whose sum is σ = 25573109348. Its totient is φ = 25573109346.

The previous prime is 25573109267. The next prime is 25573109371. The reversal of 25573109347 is 74390137552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25573109347 - 2¹⁵ = 25573076579 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25573109297 and 25573109306.

It is not a weakly prime, because it can be changed into another prime (25573199347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12786554673 + 12786554674.

It is an arithmetic number, because the mean of its divisors is an integer number (12786554674).

Almost surely, 2^25573109347 is an apocalyptic number.

25573109347 is a deficient number, since it is larger than the sum of its proper divisors (1).

25573109347 is an equidigital number, since it uses as much as digits as its factorization.

25573109347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 793800, while the sum is 46.

The spelling of 25573109347 in words is "twenty-five billion, five hundred seventy-three million, one hundred nine thousand, three hundred forty-seven".