25268060538 has 64 divisors (see below), whose sum is σ = 64256613120. Its totient is φ = 7210022976.

The previous prime is 25268060533. The next prime is 25268060549. The reversal of 25268060538 is 83506086252.

25268060538 is a `hidden beast` number, since 2 + 5 + 2 + 6 + 8 + 0 + 605 + 38 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 25268060493 and 25268060502.

It is not an unprimeable number, because it can be changed into a prime (25268060533) 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, 248956 + ... + 335432.

It is an arithmetic number, because the mean of its divisors is an integer number (1004009580).

Almost surely, 2^25268060538 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25268060538, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32128306560).

25268060538 is an abundant number, since it is smaller than the sum of its proper divisors (38988552582).

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

25268060538 is a wasteful number, since it uses less digits than its factorization.

25268060538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87268 (or 87262 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The spelling of 25268060538 in words is "twenty-five billion, two hundred sixty-eight million, sixty thousand, five hundred thirty-eight".