25289870606 has 64 divisors (see below), whose sum is σ = 50969157120. Its totient is φ = 9088882560.

The previous prime is 25289870603. The next prime is 25289870647. The reversal of 25289870606 is 60607898252.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25289870603) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3574040 + ... + 3581108.

It is an arithmetic number, because the mean of its divisors is an integer number (796393080).

Almost surely, 2^25289870606 is an apocalyptic number.

25289870606 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

25289870606 is an abundant number, since it is smaller than the sum of its proper divisors (25679286514).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25289870606 is a wasteful number, since it uses less digits than its factorization.

25289870606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8889.

The product of its (nonzero) digits is 2903040, while the sum is 53.

The spelling of 25289870606 in words is "twenty-five billion, two hundred eighty-nine million, eight hundred seventy thousand, six hundred six".