25213212143 has 8 divisors (see below), whose sum is σ = 28820442912. Its totient is φ = 21607317216.

The previous prime is 25213212137. The next prime is 25213212149. The reversal of 25213212143 is 34121231252.

It is an interprime number because it is at equal distance from previous prime (25213212137) and next prime (25213212149).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25213212143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25213212149) 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 in 7 ways as a sum of consecutive naturals, for example, 293180 + ... + 369297.

It is an arithmetic number, because the mean of its divisors is an integer number (3602555364).

Almost surely, 2^25213212143 is an apocalyptic number.

25213212143 is a deficient number, since it is larger than the sum of its proper divisors (3607230769).

25213212143 is an equidigital number, since it uses as much as digits as its factorization.

25213212143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667921.

The product of its digits is 2880, while the sum is 26.

Adding to 25213212143 its reverse (34121231252), we get a palindrome (59334443395).

The spelling of 25213212143 in words is "twenty-five billion, two hundred thirteen million, two hundred twelve thousand, one hundred forty-three".