25755255280 has 40 divisors (see below), whose sum is σ = 59888800800. Its totient is φ = 10300754688.

The previous prime is 25755255277. The next prime is 25755255283. The reversal of 25755255280 is 8255255752.

It is an interprime number because it is at equal distance from previous prime (25755255277) and next prime (25755255283).

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 25755255280.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25755255283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 787086 + ... + 819154.

It is an arithmetic number, because the mean of its divisors is an integer number (1497220020).

Almost surely, 2^25755255280 is an apocalyptic number.

25755255280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25755255280 is an abundant number, since it is smaller than the sum of its proper divisors (34133545520).

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

25755255280 is a wasteful number, since it uses less digits than its factorization.

25755255280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42121 (or 42115 counting only the distinct ones).

The product of its (nonzero) digits is 1400000, while the sum is 46.

The spelling of 25755255280 in words is "twenty-five billion, seven hundred fifty-five million, two hundred fifty-five thousand, two hundred eighty".