25387960896 has 105 divisors (see below), whose sum is σ = 75291891961. Its totient is φ = 8458829568.

The previous prime is 25387960891. The next prime is 25387960921. The reversal of 25387960896 is 69806978352.

The square root of 25387960896 is 159336.

It is a perfect power (a square), and thus also a powerful number.

25387960896 is a `hidden beast` number, since 2 + 538 + 7 + 9 + 6 + 0 + 8 + 96 = 666.

It can be written as a sum of positive squares in only one way, i.e., 25204737600 + 183223296 = 158760^2 + 13536^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25387960891) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 11471086 + ... + 11473298.

Almost surely, 2^25387960896 is an apocalyptic number.

25387960896 is the 159336-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25387960896

25387960896 is an abundant number, since it is smaller than the sum of its proper divisors (49903931065).

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

25387960896 is an frugal number, since it uses more digits than its factorization.

25387960896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4450 (or 2218 counting only the distinct ones).

The product of its (nonzero) digits is 39191040, while the sum is 63.

The spelling of 25387960896 in words is "twenty-five billion, three hundred eighty-seven million, nine hundred sixty thousand, eight hundred ninety-six".