25772928473 has 2 divisors, whose sum is σ = 25772928474. Its totient is φ = 25772928472.

The previous prime is 25772928463. The next prime is 25772928481. The reversal of 25772928473 is 37482927752.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20314230784 + 5458697689 = 142528^2 + 73883^2 .

It is a cyclic number.

It is not a de Polignac number, because 25772928473 - 2¹⁴ = 25772912089 is a prime.

It is a super-2 number, since 2×25772928473² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25772928463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12886464236 + 12886464237.

It is an arithmetic number, because the mean of its divisors is an integer number (12886464237).

Almost surely, 2^25772928473 is an apocalyptic number.

It is an amenable number.

25772928473 is a deficient number, since it is larger than the sum of its proper divisors (1).

25772928473 is an equidigital number, since it uses as much as digits as its factorization.

25772928473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11854080, while the sum is 56.

The spelling of 25772928473 in words is "twenty-five billion, seven hundred seventy-two million, nine hundred twenty-eight thousand, four hundred seventy-three".