25555275553 has 16 divisors (see below), whose sum is σ = 26081346816. Its totient is φ = 25035171840.

The previous prime is 25555275527. The next prime is 25555275569. The reversal of 25555275553 is 35557255552.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25555275553 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25555275497 and 25555275506.

It is not an unprimeable number, because it can be changed into a prime (25555276553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16561300 + ... + 16562842.

It is an arithmetic number, because the mean of its divisors is an integer number (1630084176).

Almost surely, 2^25555275553 is an apocalyptic number.

It is an amenable number.

25555275553 is a deficient number, since it is larger than the sum of its proper divisors (526071263).

25555275553 is a wasteful number, since it uses less digits than its factorization.

25555275553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3264.

The product of its digits is 6562500, while the sum is 49.

The spelling of 25555275553 in words is "twenty-five billion, five hundred fifty-five million, two hundred seventy-five thousand, five hundred fifty-three".