25250143 has 2 divisors, whose sum is σ = 25250144. Its totient is φ = 25250142.

The previous prime is 25250123. The next prime is 25250179. The reversal of 25250143 is 34105252.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25250143 is a prime.

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

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25250123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12625071 + 12625072.

It is an arithmetic number, because the mean of its divisors is an integer number (12625072).

Almost surely, 2^25250143 is an apocalyptic number.

25250143 is a deficient number, since it is larger than the sum of its proper divisors (1).

25250143 is an equidigital number, since it uses as much as digits as its factorization.

25250143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 25250143 is about 5024.9520395721. The cubic root of 25250143 is about 293.3737692477.

Adding to 25250143 its reverse (34105252), we get a palindrome (59355395).

The spelling of 25250143 in words is "twenty-five million, two hundred fifty thousand, one hundred forty-three".