25442953 has 2 divisors, whose sum is σ = 25442954. Its totient is φ = 25442952.

The previous prime is 25442929. The next prime is 25442969. The reversal of 25442953 is 35924452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18088009 + 7354944 = 4253^2 + 2712^2 .

It is a cyclic number.

It is not a de Polignac number, because 25442953 - 2⁹ = 25442441 is a prime.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (25442993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12721476 + 12721477.

It is an arithmetic number, because the mean of its divisors is an integer number (12721477).

Almost surely, 2^25442953 is an apocalyptic number.

It is an amenable number.

25442953 is a deficient number, since it is larger than the sum of its proper divisors (1).

25442953 is an equidigital number, since it uses as much as digits as its factorization.

25442953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43200, while the sum is 34.

The square root of 25442953 is about 5044.1008118395. The cubic root of 25442953 is about 294.1186102627.

The spelling of 25442953 in words is "twenty-five million, four hundred forty-two thousand, nine hundred fifty-three".