25143487 has 2 divisors, whose sum is σ = 25143488. Its totient is φ = 25143486.

The previous prime is 25143427. The next prime is 25143491. The reversal of 25143487 is 78434152.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25143487 - 2¹¹ = 25141439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25143427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12571743 + 12571744.

It is an arithmetic number, because the mean of its divisors is an integer number (12571744).

Almost surely, 2^25143487 is an apocalyptic number.

25143487 is a deficient number, since it is larger than the sum of its proper divisors (1).

25143487 is an equidigital number, since it uses as much as digits as its factorization.

25143487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26880, while the sum is 34.

The square root of 25143487 is about 5014.3281703534. The cubic root of 25143487 is about 292.9601183550.

The spelling of 25143487 in words is "twenty-five million, one hundred forty-three thousand, four hundred eighty-seven".