25890291135 has 48 divisors (see below), whose sum is σ = 45116250816. Its totient is φ = 13734572544.

The previous prime is 25890291121. The next prime is 25890291137. The reversal of 25890291135 is 53119209852.

25890291135 is a `hidden beast` number, since 2 + 589 + 0 + 29 + 11 + 35 = 666.

It is not a de Polignac number, because 25890291135 - 2⁶ = 25890291071 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25890291137) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9060627 + ... + 9063483.

It is an arithmetic number, because the mean of its divisors is an integer number (939921892).

Almost surely, 2^25890291135 is an apocalyptic number.

25890291135 is a deficient number, since it is larger than the sum of its proper divisors (19225959681).

25890291135 is a wasteful number, since it uses less digits than its factorization.

25890291135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3872 (or 3869 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 45.

The spelling of 25890291135 in words is "twenty-five billion, eight hundred ninety million, two hundred ninety-one thousand, one hundred thirty-five".