25944520000 has 560 divisors, whose sum is σ = 78714803200. Its totient is φ = 8467200000.

The previous prime is 25944519983. The next prime is 25944520013. The reversal of 25944520000 is 2544952.

It is a tau number, because it is divible by the number of its divisors (560).

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 425319970 + ... + 425320030.

Almost surely, 2^25944520000 is an apocalyptic number.

25944520000 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 25944520000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39357401600).

25944520000 is an abundant number, since it is smaller than the sum of its proper divisors (52770283200).

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

25944520000 is an frugal number, since it uses more digits than its factorization.

25944520000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The spelling of 25944520000 in words is "twenty-five billion, nine hundred forty-four million, five hundred twenty thousand".