25650329628 has 192 divisors, whose sum is σ = 77961461760. Its totient is φ = 6369235200.

The previous prime is 25650329611. The next prime is 25650329651. The reversal of 25650329628 is 82692305652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2372058 + ... + 2382846.

It is an arithmetic number, because the mean of its divisors is an integer number (406049280).

Almost surely, 2^25650329628 is an apocalyptic number.

25650329628 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25650329628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38980730880).

25650329628 is an abundant number, since it is smaller than the sum of its proper divisors (52311132132).

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

25650329628 is a wasteful number, since it uses less digits than its factorization.

25650329628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10928 (or 10926 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 48.

The spelling of 25650329628 in words is "twenty-five billion, six hundred fifty million, three hundred twenty-nine thousand, six hundred twenty-eight".