25025022630 has 128 divisors (see below), whose sum is σ = 68553216000. Its totient is φ = 6493030272.

The previous prime is 25025022623. The next prime is 25025022641. The reversal of 25025022630 is 3622052052.

25025022630 is a `hidden beast` number, since 2 + 5 + 0 + 2 + 5 + 0 + 22 + 630 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 25025022594 and 25025022603.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2189671 + ... + 2201069.

It is an arithmetic number, because the mean of its divisors is an integer number (535572000).

Almost surely, 2^25025022630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25025022630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34276608000).

25025022630 is an abundant number, since it is smaller than the sum of its proper divisors (43528193370).

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

25025022630 is a wasteful number, since it uses less digits than its factorization.

25025022630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11635 (or 11629 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 25025022630 its reverse (3622052052), we get a palindrome (28647074682).

The spelling of 25025022630 in words is "twenty-five billion, twenty-five million, twenty-two thousand, six hundred thirty".