25006670650 has 96 divisors (see below), whose sum is σ = 52372147968. Its totient is φ = 8814220800.

The previous prime is 25006670629. The next prime is 25006670729. The reversal of 25006670650 is 5607660052.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9222795 + ... + 9225505.

It is an arithmetic number, because the mean of its divisors is an integer number (545543208).

Almost surely, 2^25006670650 is an apocalyptic number.

25006670650 is an abundant number, since it is smaller than the sum of its proper divisors (27365477318).

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

25006670650 is a wasteful number, since it uses less digits than its factorization.

25006670650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3376 (or 3371 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 37.

The spelling of 25006670650 in words is "twenty-five billion, six million, six hundred seventy thousand, six hundred fifty".