25782553300 has 72 divisors (see below), whose sum is σ = 64310633856. Its totient is φ = 8788594560.

The previous prime is 25782553297. The next prime is 25782553319. The reversal of 25782553300 is 335528752.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14649 + ... + 227551.

It is an arithmetic number, because the mean of its divisors is an integer number (893203248).

Almost surely, 2^25782553300 is an apocalyptic number.

25782553300 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 25782553300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32155316928).

25782553300 is an abundant number, since it is smaller than the sum of its proper divisors (38528080556).

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

25782553300 is a wasteful number, since it uses less digits than its factorization.

25782553300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213097 (or 213090 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 40.

The spelling of 25782553300 in words is "twenty-five billion, seven hundred eighty-two million, five hundred fifty-three thousand, three hundred".