25672243 has 2 divisors, whose sum is σ = 25672244. Its totient is φ = 25672242.

The previous prime is 25672217. The next prime is 25672259. The reversal of 25672243 is 34227652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25672243 - 2²¹ = 23575091 is a prime.

It is not a weakly prime, because it can be changed into another prime (25670243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12836121 + 12836122.

It is an arithmetic number, because the mean of its divisors is an integer number (12836122).

Almost surely, 2^25672243 is an apocalyptic number.

25672243 is a deficient number, since it is larger than the sum of its proper divisors (1).

25672243 is an equidigital number, since it uses as much as digits as its factorization.

25672243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 31.

The square root of 25672243 is about 5066.7783649968. The cubic root of 25672243 is about 294.9994943973. Note that the first 3 decimals are identical.

Adding to 25672243 its reverse (34227652), we get a palindrome (59899895).

The spelling of 25672243 in words is "twenty-five million, six hundred seventy-two thousand, two hundred forty-three".