25266427 has 2 divisors, whose sum is σ = 25266428. Its totient is φ = 25266426.

The previous prime is 25266361. The next prime is 25266431. The reversal of 25266427 is 72466252.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25266427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25266392 and 25266401.

It is not a weakly prime, because it can be changed into another prime (25266487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12633213 + 12633214.

It is an arithmetic number, because the mean of its divisors is an integer number (12633214).

Almost surely, 2^25266427 is an apocalyptic number.

25266427 is a deficient number, since it is larger than the sum of its proper divisors (1).

25266427 is an equidigital number, since it uses as much as digits as its factorization.

25266427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 34.

The square root of 25266427 is about 5026.5720923906. The cubic root of 25266427 is about 293.4368219845.

The spelling of 25266427 in words is "twenty-five million, two hundred sixty-six thousand, four hundred twenty-seven".