25251943 has 2 divisors, whose sum is σ = 25251944. Its totient is φ = 25251942.

The previous prime is 25251937. The next prime is 25251973. The reversal of 25251943 is 34915252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25251943 - 2⁵ = 25251911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25251973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12625971 + 12625972.

It is an arithmetic number, because the mean of its divisors is an integer number (12625972).

Almost surely, 2^25251943 is an apocalyptic number.

25251943 is a deficient number, since it is larger than the sum of its proper divisors (1).

25251943 is an equidigital number, since it uses as much as digits as its factorization.

25251943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10800, while the sum is 31.

The square root of 25251943 is about 5025.1311425673. The cubic root of 25251943 is about 293.3807403005.

The spelling of 25251943 in words is "twenty-five million, two hundred fifty-one thousand, nine hundred forty-three".