25678223 has 2 divisors, whose sum is σ = 25678224. Its totient is φ = 25678222.

The previous prime is 25678187. The next prime is 25678229. The reversal of 25678223 is 32287652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25678223 - 2¹⁰ = 25677199 is a prime.

It is a super-2 number, since 2×25678223² = 1318742272875458, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25678229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12839111 + 12839112.

It is an arithmetic number, because the mean of its divisors is an integer number (12839112).

Almost surely, 2^25678223 is an apocalyptic number.

25678223 is a deficient number, since it is larger than the sum of its proper divisors (1).

25678223 is an equidigital number, since it uses as much as digits as its factorization.

25678223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 35.

The square root of 25678223 is about 5067.3684492052. The cubic root of 25678223 is about 295.0223979930.

The spelling of 25678223 in words is "twenty-five million, six hundred seventy-eight thousand, two hundred twenty-three".