25303055280 has 80 divisors (see below), whose sum is σ = 79248198624. Its totient is φ = 6677913600.

The previous prime is 25303055273. The next prime is 25303055299. The reversal of 25303055280 is 8255030352.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 520171 + ... + 566730.

Almost surely, 2^25303055280 is an apocalyptic number.

25303055280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25303055280 is an abundant number, since it is smaller than the sum of its proper divisors (53945143344).

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

25303055280 is a wasteful number, since it uses less digits than its factorization.

25303055280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1087014 (or 1087008 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 33.

The spelling of 25303055280 in words is "twenty-five billion, three hundred three million, fifty-five thousand, two hundred eighty".