25180220085 has 8 divisors (see below), whose sum is σ = 40288352160. Its totient is φ = 13429450704.

The previous prime is 25180220047. The next prime is 25180220101. The reversal of 25180220085 is 58002208152.

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

It is not a de Polignac number, because 25180220085 - 2⁷ = 25180219957 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 839340655 + ... + 839340684.

It is an arithmetic number, because the mean of its divisors is an integer number (5036044020).

Almost surely, 2^25180220085 is an apocalyptic number.

It is an amenable number.

25180220085 is a deficient number, since it is larger than the sum of its proper divisors (15108132075).

25180220085 is a wasteful number, since it uses less digits than its factorization.

25180220085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1678681347.

The product of its (nonzero) digits is 12800, while the sum is 33.

The spelling of 25180220085 in words is "twenty-five billion, one hundred eighty million, two hundred twenty thousand, eighty-five".