25126301632 has 56 divisors (see below), whose sum is σ = 52798919040. Its totient is φ = 11830567680.

The previous prime is 25126301623. The next prime is 25126301659. The reversal of 25126301632 is 23610362152.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 25126301594 and 25126301603.

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 7 ways as a sum of consecutive naturals, for example, 141207 + ... + 264937.

It is an arithmetic number, because the mean of its divisors is an integer number (942837840).

Almost surely, 2^25126301632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25126301632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26399459520).

25126301632 is an abundant number, since it is smaller than the sum of its proper divisors (27672617408).

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

25126301632 is a wasteful number, since it uses less digits than its factorization.

25126301632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123929 (or 123919 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

Adding to 25126301632 its reverse (23610362152), we get a palindrome (48736663784).

The spelling of 25126301632 in words is "twenty-five billion, one hundred twenty-six million, three hundred one thousand, six hundred thirty-two".