25257575563 has 8 divisors (see below), whose sum is σ = 29174526000. Its totient is φ = 21610759680.

The previous prime is 25257575561. The next prime is 25257575591. The reversal of 25257575563 is 36557575252.

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

It is a cyclic number.

It is not a de Polignac number, because 25257575563 - 2¹ = 25257575561 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 25257575563.

It is not an unprimeable number, because it can be changed into a prime (25257575561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67533438 + ... + 67533811.

It is an arithmetic number, because the mean of its divisors is an integer number (3646815750).

Almost surely, 2^25257575563 is an apocalyptic number.

25257575563 is a deficient number, since it is larger than the sum of its proper divisors (3916950437).

25257575563 is a wasteful number, since it uses less digits than its factorization.

25257575563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135067277.

The product of its digits is 11025000, while the sum is 52.

The spelling of 25257575563 in words is "twenty-five billion, two hundred fifty-seven million, five hundred seventy-five thousand, five hundred sixty-three".