25723471 has 2 divisors, whose sum is σ = 25723472. Its totient is φ = 25723470.

The previous prime is 25723447. The next prime is 25723487. The reversal of 25723471 is 17432752.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25723471 - 2¹³ = 25715279 is a prime.

It is a super-3 number, since 3×25723471³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25723421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12861735 + 12861736.

It is an arithmetic number, because the mean of its divisors is an integer number (12861736).

Almost surely, 2^25723471 is an apocalyptic number.

25723471 is a deficient number, since it is larger than the sum of its proper divisors (1).

25723471 is an equidigital number, since it uses as much as digits as its factorization.

25723471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11760, while the sum is 31.

The square root of 25723471 is about 5071.8311288922. The cubic root of 25723471 is about 295.1955841749.

The spelling of 25723471 in words is "twenty-five million, seven hundred twenty-three thousand, four hundred seventy-one".