25780302750 has 64 divisors (see below), whose sum is σ = 64757788992. Its totient is φ = 6830928000.

The previous prime is 25780302733. The next prime is 25780302781. The reversal of 25780302750 is 5720308752.

It is a junction number, because it is equal to n+sod(n) for n = 25780302699 and 25780302708.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8280 + ... + 227220.

It is an arithmetic number, because the mean of its divisors is an integer number (1011840453).

Almost surely, 2^25780302750 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25780302750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32378894496).

25780302750 is an abundant number, since it is smaller than the sum of its proper divisors (38977486242).

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

25780302750 is a wasteful number, since it uses less digits than its factorization.

25780302750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219118 (or 219108 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 39.

The spelling of 25780302750 in words is "twenty-five billion, seven hundred eighty million, three hundred two thousand, seven hundred fifty".