10025505281 has 32 divisors (see below), whose sum is σ = 11418029568. Its totient is φ = 8722954240.

The previous prime is 10025505209. The next prime is 10025505289. The reversal of 10025505281 is 18250552001.

It is a de Polignac number, because none of the positive numbers 2^k-10025505281 is a prime.

It is a super-2 number, since 2×10025505281² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10025505289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16248485 + ... + 16249101.

It is an arithmetic number, because the mean of its divisors is an integer number (356813424).

Almost surely, 2^10025505281 is an apocalyptic number.

10025505281 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10025505281 is a deficient number, since it is larger than the sum of its proper divisors (1392524287).

10025505281 is a wasteful number, since it uses less digits than its factorization.

10025505281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321.

The product of its (nonzero) digits is 4000, while the sum is 29.

The spelling of 10025505281 in words is "ten billion, twenty-five million, five hundred five thousand, two hundred eighty-one".