25651295670 has 192 divisors, whose sum is σ = 84134889216. Its totient is φ = 4920088320.

The previous prime is 25651295641. The next prime is 25651295687. The reversal of 25651295670 is 7659215652.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 149197 + ... + 271223.

It is an arithmetic number, because the mean of its divisors is an integer number (438202548).

Almost surely, 2^25651295670 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25651295670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42067444608).

25651295670 is an abundant number, since it is smaller than the sum of its proper divisors (58483593546).

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

25651295670 is a wasteful number, since it uses less digits than its factorization.

25651295670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122075 (or 122068 counting only the distinct ones).

The product of its (nonzero) digits is 1134000, while the sum is 48.

The spelling of 25651295670 in words is "twenty-five billion, six hundred fifty-one million, two hundred ninety-five thousand, six hundred seventy".