25047111985 has 8 divisors (see below), whose sum is σ = 34350325056. Its totient is φ = 17175162480.

The previous prime is 25047111983. The next prime is 25047111989. The reversal of 25047111985 is 58911174052.

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

It is not a de Polignac number, because 25047111985 - 2¹ = 25047111983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25047111983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 357815851 + ... + 357815920.

It is an arithmetic number, because the mean of its divisors is an integer number (4293790632).

Almost surely, 2^25047111985 is an apocalyptic number.

It is an amenable number.

25047111985 is a deficient number, since it is larger than the sum of its proper divisors (9303213071).

25047111985 is an equidigital number, since it uses as much as digits as its factorization.

25047111985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715631783.

The product of its (nonzero) digits is 100800, while the sum is 43.

The spelling of 25047111985 in words is "twenty-five billion, forty-seven million, one hundred eleven thousand, nine hundred eighty-five".