25355355543055 has 64 divisors (see below), whose sum is σ = 31236969351168. Its totient is φ = 19752924280320.

The previous prime is 25355355543053. The next prime is 25355355543071. The reversal of 25355355543055 is 55034555355352.

It is not a de Polignac number, because 25355355543055 - 2¹ = 25355355543053 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25355355542987 and 25355355543005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25355355543053) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6730912782 + ... + 6730916548.

It is an arithmetic number, because the mean of its divisors is an integer number (488077646112).

Almost surely, 2^{25355355543055} is an apocalyptic number.

25355355543055 is a deficient number, since it is larger than the sum of its proper divisors (5881613808113).

25355355543055 is a wasteful number, since it uses less digits than its factorization.

25355355543055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4696.

The product of its (nonzero) digits is 84375000, while the sum is 55.

The spelling of 25355355543055 in words is "twenty-five trillion, three hundred fifty-five billion, three hundred fifty-five million, five hundred forty-three thousand, fifty-five".