25489819011 has 8 divisors (see below), whose sum is σ = 33988855824. Its totient is φ = 16991997440.

The previous prime is 25489818997. The next prime is 25489819067. The reversal of 25489819011 is 11091898452.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 25489819011 - 2⁷ = 25489818883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25489819711) 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, 253686 + ... + 339611.

It is an arithmetic number, because the mean of its divisors is an integer number (4248606978).

Almost surely, 2^25489819011 is an apocalyptic number.

25489819011 is a deficient number, since it is larger than the sum of its proper divisors (8499036813).

25489819011 is a wasteful number, since it uses less digits than its factorization.

25489819011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607621.

The product of its (nonzero) digits is 207360, while the sum is 48.

The spelling of 25489819011 in words is "twenty-five billion, four hundred eighty-nine million, eight hundred nineteen thousand, eleven".