25223143568 has 240 divisors, whose sum is σ = 63265950720. Its totient is φ = 9666784512.

The previous prime is 25223143507. The next prime is 25223143573. The reversal of 25223143568 is 86534132252.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28436021 + ... + 28436907.

It is an arithmetic number, because the mean of its divisors is an integer number (263608128).

Almost surely, 2^25223143568 is an apocalyptic number.

25223143568 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25223143568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31632975360).

25223143568 is an abundant number, since it is smaller than the sum of its proper divisors (38042807152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25223143568 is a wasteful number, since it uses less digits than its factorization.

25223143568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034 (or 1021 counting only the distinct ones).

The product of its digits is 345600, while the sum is 41.

The spelling of 25223143568 in words is "twenty-five billion, two hundred twenty-three million, one hundred forty-three thousand, five hundred sixty-eight".