25775473 has 2 divisors, whose sum is σ = 25775474. Its totient is φ = 25775472.

The previous prime is 25775471. The next prime is 25775483. The reversal of 25775473 is 37457752.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24482704 + 1292769 = 4948^2 + 1137^2 .

It is a cyclic number.

It is not a de Polignac number, because 25775473 - 2¹ = 25775471 is a prime.

Together with 25775471, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (25775471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12887736 + 12887737.

It is an arithmetic number, because the mean of its divisors is an integer number (12887737).

Almost surely, 2^25775473 is an apocalyptic number.

It is an amenable number.

25775473 is a deficient number, since it is larger than the sum of its proper divisors (1).

25775473 is an equidigital number, since it uses as much as digits as its factorization.

25775473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 205800, while the sum is 40.

The square root of 25775473 is about 5076.9550913909. The cubic root of 25775473 is about 295.3943705688.

The spelling of 25775473 in words is "twenty-five million, seven hundred seventy-five thousand, four hundred seventy-three".