25250055302780 has 48 divisors (see below), whose sum is σ = 66109235705856. Its totient is φ = 7870147106880.

The previous prime is 25250055302749. The next prime is 25250055302837. The reversal of 25250055302780 is 8720355005252.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8198068364 + ... + 8198071443.

It is an arithmetic number, because the mean of its divisors is an integer number (1377275743872).

Almost surely, 2^{25250055302780} is an apocalyptic number.

25250055302780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25250055302780 is an abundant number, since it is smaller than the sum of its proper divisors (40859180403076).

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

25250055302780 is a wasteful number, since it uses less digits than its factorization.

25250055302780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16396139834 (or 16396139832 counting only the distinct ones).

The product of its (nonzero) digits is 840000, while the sum is 44.

The spelling of 25250055302780 in words is "twenty-five trillion, two hundred fifty billion, fifty-five million, three hundred two thousand, seven hundred eighty".