25321500143 has 2 divisors, whose sum is σ = 25321500144. Its totient is φ = 25321500142.

The previous prime is 25321500077. The next prime is 25321500151. The reversal of 25321500143 is 34100512352.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25321500143 - 2³² = 21026532847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25321500163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12660750071 + 12660750072.

It is an arithmetic number, because the mean of its divisors is an integer number (12660750072).

Almost surely, 2^25321500143 is an apocalyptic number.

25321500143 is a deficient number, since it is larger than the sum of its proper divisors (1).

25321500143 is an equidigital number, since it uses as much as digits as its factorization.

25321500143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 26.

The spelling of 25321500143 in words is "twenty-five billion, three hundred twenty-one million, five hundred thousand, one hundred forty-three".