25208191067 has 2 divisors, whose sum is σ = 25208191068. Its totient is φ = 25208191066.

The previous prime is 25208190977. The next prime is 25208191079. The reversal of 25208191067 is 76019180252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25208191067 - 2¹⁴ = 25208174683 is a prime.

It is not a weakly prime, because it can be changed into another prime (25208193067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12604095533 + 12604095534.

It is an arithmetic number, because the mean of its divisors is an integer number (12604095534).

Almost surely, 2^25208191067 is an apocalyptic number.

25208191067 is a deficient number, since it is larger than the sum of its proper divisors (1).

25208191067 is an equidigital number, since it uses as much as digits as its factorization.

25208191067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 41.

The spelling of 25208191067 in words is "twenty-five billion, two hundred eight million, one hundred ninety-one thousand, sixty-seven".