25625895040 has 128 divisors (see below), whose sum is σ = 62663757120. Its totient is φ = 10017976320.

The previous prime is 25625895007. The next prime is 25625895041. The reversal of 25625895040 is 4059852652.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (25625895041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6361507 + ... + 6365533.

Almost surely, 2^25625895040 is an apocalyptic number.

25625895040 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 25625895040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31331878560).

25625895040 is an abundant number, since it is smaller than the sum of its proper divisors (37037862080).

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

25625895040 is a wasteful number, since it uses less digits than its factorization.

25625895040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4270 (or 4258 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 46.

The spelling of 25625895040 in words is "twenty-five billion, six hundred twenty-five million, eight hundred ninety-five thousand, forty".