25275487 has 2 divisors, whose sum is σ = 25275488. Its totient is φ = 25275486.

The previous prime is 25275469. The next prime is 25275493. The reversal of 25275487 is 78457252.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25275487 - 2⁷ = 25275359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25275427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12637743 + 12637744.

It is an arithmetic number, because the mean of its divisors is an integer number (12637744).

Almost surely, 2^25275487 is an apocalyptic number.

25275487 is a deficient number, since it is larger than the sum of its proper divisors (1).

25275487 is an equidigital number, since it uses as much as digits as its factorization.

25275487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 156800, while the sum is 40.

The square root of 25275487 is about 5027.4732222062. The cubic root of 25275487 is about 293.4718911813.

The spelling of 25275487 in words is "twenty-five million, two hundred seventy-five thousand, four hundred eighty-seven".