25472387 has 2 divisors, whose sum is σ = 25472388. Its totient is φ = 25472386.

The previous prime is 25472329. The next prime is 25472389. The reversal of 25472387 is 78327452.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25472387 - 2²⁴ = 8695171 is a prime.

Together with 25472389, it forms a pair of twin primes.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 25472387.

It is not a weakly prime, because it can be changed into another prime (25472389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12736193 + 12736194.

It is an arithmetic number, because the mean of its divisors is an integer number (12736194).

Almost surely, 2^25472387 is an apocalyptic number.

25472387 is a deficient number, since it is larger than the sum of its proper divisors (1).

25472387 is an equidigital number, since it uses as much as digits as its factorization.

25472387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 94080, while the sum is 38.

The square root of 25472387 is about 5047.0176342074. The cubic root of 25472387 is about 294.2319848248.

The spelling of 25472387 in words is "twenty-five million, four hundred seventy-two thousand, three hundred eighty-seven".