25555280280003 has 24 divisors (see below), whose sum is σ = 37772550232560. Its totient is φ = 16640241649920.

The previous prime is 25555280279939. The next prime is 25555280280071. The reversal of 25555280280003 is 30008208255552.

It is not a de Polignac number, because 25555280280003 - 2⁶ = 25555280279939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25555280280073) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15503983 + ... + 17072903.

It is an arithmetic number, because the mean of its divisors is an integer number (1573856259690).

Almost surely, 2^{25555280280003} is an apocalyptic number.

25555280280003 is a deficient number, since it is larger than the sum of its proper divisors (12217269952557).

25555280280003 is a wasteful number, since it uses less digits than its factorization.

25555280280003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1611059 (or 1611056 counting only the distinct ones).

The product of its (nonzero) digits is 960000, while the sum is 45.

The spelling of 25555280280003 in words is "twenty-five trillion, five hundred fifty-five billion, two hundred eighty million, two hundred eighty thousand, three".