25383481 has 2 divisors, whose sum is σ = 25383482. Its totient is φ = 25383480.

The previous prime is 25383433. The next prime is 25383493. The reversal of 25383481 is 18438352.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19053225 + 6330256 = 4365^2 + 2516^2 .

It is a cyclic number.

It is not a de Polignac number, because 25383481 - 2¹⁵ = 25350713 is a prime.

It is a super-2 number, since 2×25383481² = 1288642215354722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25383401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12691740 + 12691741.

It is an arithmetic number, because the mean of its divisors is an integer number (12691741).

Almost surely, 2^25383481 is an apocalyptic number.

It is an amenable number.

25383481 is a deficient number, since it is larger than the sum of its proper divisors (1).

25383481 is an equidigital number, since it uses as much as digits as its factorization.

25383481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23040, while the sum is 34.

The square root of 25383481 is about 5038.2021595009. The cubic root of 25383481 is about 293.8892675373.

The spelling of 25383481 in words is "twenty-five million, three hundred eighty-three thousand, four hundred eighty-one".