25051252143 has 4 divisors (see below), whose sum is σ = 33401669528. Its totient is φ = 16700834760.

The previous prime is 25051252129. The next prime is 25051252181. The reversal of 25051252143 is 34125215052.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 25051252143 - 2⁸ = 25051251887 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25051252143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25051252243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4175208688 + ... + 4175208693.

It is an arithmetic number, because the mean of its divisors is an integer number (8350417382).

Almost surely, 2^25051252143 is an apocalyptic number.

25051252143 is a deficient number, since it is larger than the sum of its proper divisors (8350417385).

25051252143 is an equidigital number, since it uses as much as digits as its factorization.

25051252143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8350417384.

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 25051252143 its reverse (34125215052), we get a palindrome (59176467195).

The spelling of 25051252143 in words is "twenty-five billion, fifty-one million, two hundred fifty-two thousand, one hundred forty-three".