25163626460 has 96 divisors (see below), whose sum is σ = 60930938880. Its totient is φ = 8551001088.

The previous prime is 25163626447. The next prime is 25163626463. The reversal of 25163626460 is 6462636152.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25163626463) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7593764 + ... + 7597076.

It is an arithmetic number, because the mean of its divisors is an integer number (634697280).

Almost surely, 2^25163626460 is an apocalyptic number.

25163626460 is a gapful number since it is divisible by the number (20) 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 25163626460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30465469440).

25163626460 is an abundant number, since it is smaller than the sum of its proper divisors (35767312420).

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

25163626460 is a wasteful number, since it uses less digits than its factorization.

25163626460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3795 (or 3793 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 41.

The spelling of 25163626460 in words is "twenty-five billion, one hundred sixty-three million, six hundred twenty-six thousand, four hundred sixty".