25695611040 has 384 divisors, whose sum is σ = 92539625472. Its totient is φ = 5932523520.

The previous prime is 25695611003. The next prime is 25695611041. The reversal of 25695611040 is 4011659652.

It is a self number, because there is not a number n which added to its sum of digits gives 25695611040.

It is not an unprimeable number, because it can be changed into a prime (25695611041) by changing a digit.

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, 55497849 + ... + 55498311.

It is an arithmetic number, because the mean of its divisors is an integer number (240988608).

Almost surely, 2^25695611040 is an apocalyptic number.

25695611040 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 25695611040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46269812736).

25695611040 is an abundant number, since it is smaller than the sum of its proper divisors (66844014432).

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

25695611040 is a wasteful number, since it uses less digits than its factorization.

25695611040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972 (or 964 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 39.

The spelling of 25695611040 in words is "twenty-five billion, six hundred ninety-five million, six hundred eleven thousand, forty".