25443315013 has 8 divisors (see below), whose sum is σ = 26959262400. Its totient is φ = 23929510080.

The previous prime is 25443314999. The next prime is 25443315059. The reversal of 25443315013 is 31051334452.

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

It is not a de Polignac number, because 25443315013 - 2¹³ = 25443306821 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 (25443315083) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 511123 + ... + 558688.

It is an arithmetic number, because the mean of its divisors is an integer number (3369907800).

Almost surely, 2^25443315013 is an apocalyptic number.

It is an amenable number.

25443315013 is a deficient number, since it is larger than the sum of its proper divisors (1515947387).

25443315013 is a wasteful number, since it uses less digits than its factorization.

25443315013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071227.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 25443315013 its reverse (31051334452), we get a palindrome (56494649465).

The spelling of 25443315013 in words is "twenty-five billion, four hundred forty-three million, three hundred fifteen thousand, thirteen".