25563570459603 has 32 divisors (see below), whose sum is σ = 38190452935680. Its totient is φ = 15073503816960.

The previous prime is 25563570459569. The next prime is 25563570459641. The reversal of 25563570459603 is 30695407536552.

It is not a de Polignac number, because 25563570459603 - 2¹⁷ = 25563570328531 is a prime.

It is a super-2 number, since 2×25563570459603² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25563570459643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21755983 + ... + 22900871.

It is an arithmetic number, because the mean of its divisors is an integer number (1193451654240).

Almost surely, 2^{25563570459603} is an apocalyptic number.

25563570459603 is a deficient number, since it is larger than the sum of its proper divisors (12626882476077).

25563570459603 is a wasteful number, since it uses less digits than its factorization.

25563570459603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1163227.

The product of its (nonzero) digits is 102060000, while the sum is 60.

The spelling of 25563570459603 in words is "twenty-five trillion, five hundred sixty-three billion, five hundred seventy million, four hundred fifty-nine thousand, six hundred three".