25743953 has 2 divisors, whose sum is σ = 25743954. Its totient is φ = 25743952.

The previous prime is 25743943. The next prime is 25743973. The reversal of 25743953 is 35934752.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25725184 + 18769 = 5072^2 + 137^2 .

It is a cyclic number.

It is not a de Polignac number, because 25743953 - 2⁶ = 25743889 is a prime.

It is a super-2 number, since 2×25743953² = 1325502232132418, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (25743943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12871976 + 12871977.

It is an arithmetic number, because the mean of its divisors is an integer number (12871977).

Almost surely, 2^25743953 is an apocalyptic number.

It is an amenable number.

25743953 is a deficient number, since it is larger than the sum of its proper divisors (1).

25743953 is an equidigital number, since it uses as much as digits as its factorization.

25743953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 113400, while the sum is 38.

The square root of 25743953 is about 5073.8499189471. The cubic root of 25743953 is about 295.2739120171.

The spelling of 25743953 in words is "twenty-five million, seven hundred forty-three thousand, nine hundred fifty-three".