25905743 has 2 divisors, whose sum is σ = 25905744. Its totient is φ = 25905742.

The previous prime is 25905713. The next prime is 25905767. The reversal of 25905743 is 34750952.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25905743 - 2¹⁶ = 25840207 is a prime.

It is a super-2 number, since 2×25905743² = 1342215040764098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25905713) 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, 12952871 + 12952872.

It is an arithmetic number, because the mean of its divisors is an integer number (12952872).

Almost surely, 2^25905743 is an apocalyptic number.

25905743 is a deficient number, since it is larger than the sum of its proper divisors (1).

25905743 is an equidigital number, since it uses as much as digits as its factorization.

25905743 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 25905743 is about 5089.7684623173. The cubic root of 25905743 is about 295.8911784966.

The spelling of 25905743 in words is "twenty-five million, nine hundred five thousand, seven hundred forty-three".