25359128055 has 80 divisors (see below), whose sum is σ = 50225655744. Its totient is φ = 12175764480.

The previous prime is 25359128033. The next prime is 25359128057. The reversal of 25359128055 is 55082195352.

It is a happy number.

25359128055 is a `hidden beast` number, since 2 + 5 + 3 + 591 + 2 + 8 + 0 + 55 = 666.

It is not a de Polignac number, because 25359128055 - 2⁶ = 25359127991 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 25359128055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25359128057) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 78285 + ... + 238425.

Almost surely, 2^25359128055 is an apocalyptic number.

25359128055 is a deficient number, since it is larger than the sum of its proper divisors (24866527689).

25359128055 is a wasteful number, since it uses less digits than its factorization.

25359128055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160198 (or 160189 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 45.

The spelling of 25359128055 in words is "twenty-five billion, three hundred fifty-nine million, one hundred twenty-eight thousand, fifty-five".