25855255798 has 8 divisors (see below), whose sum is σ = 39250147608. Its totient is φ = 12771873264.

The previous prime is 25855255793. The next prime is 25855255799. The reversal of 25855255798 is 89755255852.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×25855255798³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25855255793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77877111 + ... + 77877442.

It is an arithmetic number, because the mean of its divisors is an integer number (4906268451).

Almost surely, 2^25855255798 is an apocalyptic number.

25855255798 is a deficient number, since it is larger than the sum of its proper divisors (13394891810).

25855255798 is a wasteful number, since it uses less digits than its factorization.

25855255798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155754638.

The product of its digits is 50400000, while the sum is 61.

The spelling of 25855255798 in words is "twenty-five billion, eight hundred fifty-five million, two hundred fifty-five thousand, seven hundred ninety-eight".