25725023277440 has 32 divisors (see below), whose sum is σ = 61498883774160. Its totient is φ = 10290009310720.

The previous prime is 25725023277433. The next prime is 25725023277449. The reversal of 25725023277440 is 4477232052752.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25725023277449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20097673796 + ... + 20097675075.

Almost surely, 2^{25725023277440} is an apocalyptic number.

25725023277440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25725023277440 is an abundant number, since it is smaller than the sum of its proper divisors (35773860496720).

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

25725023277440 is an equidigital number, since it uses as much as digits as its factorization.

25725023277440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40195348890 (or 40195348878 counting only the distinct ones).

The product of its (nonzero) digits is 6585600, while the sum is 50.

The spelling of 25725023277440 in words is "twenty-five trillion, seven hundred twenty-five billion, twenty-three million, two hundred seventy-seven thousand, four hundred forty".