25349843 has 2 divisors, whose sum is σ = 25349844. Its totient is φ = 25349842.

The previous prime is 25349837. The next prime is 25349851. The reversal of 25349843 is 34894352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25349843 - 2⁴ = 25349827 is a prime.

It is a super-2 number, since 2×25349843² = 1285229080249298, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25349797 and 25349806.

It is not a weakly prime, because it can be changed into another prime (25349813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12674921 + 12674922.

It is an arithmetic number, because the mean of its divisors is an integer number (12674922).

Almost surely, 2^25349843 is an apocalyptic number.

25349843 is a deficient number, since it is larger than the sum of its proper divisors (1).

25349843 is an equidigital number, since it uses as much as digits as its factorization.

25349843 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 38.

The square root of 25349843 is about 5034.8627588049. The cubic root of 25349843 is about 293.7593901933.

The spelling of 25349843 in words is "twenty-five million, three hundred forty-nine thousand, eight hundred forty-three".