25563140416 has 56 divisors (see below), whose sum is σ = 55846248480. Its totient is φ = 11512972800.

The previous prime is 25563140413. The next prime is 25563140437. The reversal of 25563140416 is 61404136552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25563140413) 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, 89830 + ... + 243301.

Almost surely, 2^25563140416 is an apocalyptic number.

It is an amenable number.

25563140416 is an abundant number, since it is smaller than the sum of its proper divisors (30283108064).

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

25563140416 is a wasteful number, since it uses less digits than its factorization.

25563140416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333263 (or 333253 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

Adding to 25563140416 its reverse (61404136552), we get a palindrome (86967276968).

The spelling of 25563140416 in words is "twenty-five billion, five hundred sixty-three million, one hundred forty thousand, four hundred sixteen".