25654503473 has 2 divisors, whose sum is σ = 25654503474. Its totient is φ = 25654503472.

The previous prime is 25654503443. The next prime is 25654503481. The reversal of 25654503473 is 37430545652.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19895666704 + 5758836769 = 141052^2 + 75887^2 .

It is a cyclic number.

It is not a de Polignac number, because 25654503473 - 2¹⁶ = 25654437937 is a prime.

It is not a weakly prime, because it can be changed into another prime (25654503443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12827251736 + 12827251737.

It is an arithmetic number, because the mean of its divisors is an integer number (12827251737).

Almost surely, 2^25654503473 is an apocalyptic number.

It is an amenable number.

25654503473 is a deficient number, since it is larger than the sum of its proper divisors (1).

25654503473 is an equidigital number, since it uses as much as digits as its factorization.

25654503473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512000, while the sum is 44.

The spelling of 25654503473 in words is "twenty-five billion, six hundred fifty-four million, five hundred three thousand, four hundred seventy-three".